When a system is at equilibrium, ________. When a system is at equilibrium, ________. the reverse process is spontaneous but the forward process is not the forward and the reverse processes are both spontaneous both forward and reverse processes have stopped the forward process is spontaneous but the reverse process is not the process is not spontaneous in either direction

Answers

Answer 1

Answer:

When a system is at equilibrium, the process is not spontaneous at either direction.

Explanation:

The process is not spontaneous at either direction , when a system is at equilibrium  ΔG = 0, because -

We know that a negative ΔG indicates a forward-moving phase that is random.

We already know that a positive ΔG implies a non-spontaneous phase going forward.

Thus , here ΔG = 0, so the process is not spontaneous in either direction.


Related Questions

What are similarities and differences between a falling object and a pendulum?

Answers

Answer:

The similarity is that they both follow the laws of physics.

In both cases, the motion is opposed by the medium where the object presses through the medium and forces it to part and flow around the object. This creates friction.

If an object is smooth and pointed like a bomb, the friction is minimised. If it is rough with pockets or vertical flat surfaces, the friction is maximised. A parachute presents a round hollow cup face to the flow, maximising friction. This is due to a hole in the top of the parachute.

The difference is the power source. In the vertical direction it is generated by gravity, the force created by the planet. This force is opposed not only by friction but also the difference between the density of the object and the medium surrounding it. If there is a large difference then the acceleration will be large and a high percentage of g.

For example we have a density of 1000 kg/meters cubed and air has a density of 1 Kg per meters cubed, the difference is 999, so we fall at an acceleration of 999/1000 x g. minus the effects of friction.

In the horizontal direction, gravity still opposes the movement creating friction in the vertical direction such as dragging a heavy object on the floor behind you. Force needs to be created horizontally to oppose the friction and to create an acceleration. A balance is soon reached where the acceleration stops and the object is dragged at a constant velocity.

Cu is in FCC structure. We know that even at close to melting temperature, vacancies are still sparsely distributed, i.e., it is almost impossible to find two vacancies directly adjacent to each other. So, for a single vacancy (assuming that it is at the origin (0,0,0) of FCC structure), determine (1) How many Cu atoms (nearest neighbors) can directly jump to this vacancy

Answers

Answer:

6

Explanation:

FCC is face centered cubic lattice. In FCC structure, there are eight atoms at the eight corner of the cubic unit cell and one atom centered in each of the faces. FCC unit cells consist of four atoms, (8/8) at the corners and (6/2) in the faces.

Given that, Cu has FCC structure and it contains a vacancy at origin (0, 0, 0). And there is no other vacancy directly adjacent to the vacancy at the origin. So, all the adjacent positions contain Cu atoms. Hence, the total number of adjacent atoms of the vacancy at origin can jump into this vacancy.

the above FCC unit cell clearly indicates that there are six adjacent atoms adjacent to the vacancy at origin

So, the total number of adjacent atoms of the vacancy at origin can jump into this vacancy is 6.

how does a spectral signature help scientists determine the composition of planets and other stars???

Answers

Answer:

How do scientists determine the chemical compositions of the planets and stars? Each element absorbs light at specific wavelengths unique to that atom. When astronomers look at an object's spectrum, they can determine its composition based on these wavelengths. ... That fingerprint often appears as the absorption of light.

Explanation:

We can conduct different spectroscopic techniques for the sample collected from stars and planets to determine their composition. Using these techniques, scientists can identify the compounds and elements present in them.

What are spectroscopic techniques ?

There are various spectroscopic techniques such as IR spectroscopy, UV- visible spectroscopy, mass spectroscopy etc. to determine the composition of both inorganic and organic compounds.

The IR spectroscopy uses the vibrational transitions of molecules by the absorption of IR radiation. The stretching or bending frequency of each functional groups are characteristic to them. Hence, we can determine the functional groups present in the molecules.

Similarly mass spectrum, atomic emission spectrum etc. provide valuable information about the sample under study including their mass and elemental compositions. Hence, spectral signature definitely helpful to determine the composition in stars and planets.

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(giving brainiest) solve please!

Answers

Answer:

The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Water in different phases moves through the atmosphere (transportation). Liquid water flows across land (runoff), into the ground (infiltration and percolation), and through the ground (groundwater). Groundwater moves into plants (plant uptake) and evaporates from plants into the atmosphere (transpiration). Solid ice and snow can turn directly into gas (sublimation). The opposite can also take place when water vapor becomes solid (deposition).

What part of the food chain is a mink?​

Answers

Answer:

The minks are very high on the aquatic food chain. The mink is a carnivorous animal, which means it eats only meat.

Explanation:

Answer:

The minks are very high on the aquatic food chain. The mink is a carnivorous animal, which means it eats only meat.

What did Dalton compare atoms to?
A. Wood
B. Jacks
C. Marbles
D. Leaves

Answers

Explanation:

the answer is C marbles hope you find it helpful

pleaseeeee helpppp!!!!!!

Answers

No thanks but your welcome pizza man

Answer:

90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u

A mystery element has 18 protons. Which one of the following statements is true about the element?
o
A. The element belongs in row 2 of the periodic table and is classified as a halogen.
O
B. The element belongs in row 3 of the periodic table and is classified as a noble gas.
O
C. The element belongs in row 4 of the periodic table and is classified as an alkali metal.
D. The element belongs in row 5 of the periodic table and is classified as an alkaline earth metal.

Answers

Answer:

B

Explanation:

Elements in a group are determined by the number of valence electrons

Elements in a period are determined by the number of electrons shell

The electronic configuration of the element is

2,8,8

the number of valence electron is 8 that means it is in Group 8/O

the number of electron shell is 3 that means it is in period (row) 3

Group 8/O elements are called Noble gases

Part A
Choose the paramagnetic species from below.
O He
O Te
O T14+
O All of the above are paramagnetic.
None of the above is paramagnetic.

Answers

Answer:

o He

Explanation:

basyshsiz0qnshshhsjzz

Helpppp me pleaseeee now I’ve been struggling so bad w this

Answers

Answer:

I don't know what the passage says, but I feel like the most logical conclusion is D or the last one.

Explanation:

Answer:

D! Hope this helps! Figured id help with all of ur questions!

Explanation:

Im a wiz at science! ;)

what part of the food chain is a mink
a: secondary consumer
b: primary consumer
c:prouducer
d:herbivore​

Answers

Secondary consumer

Hope this helps!:)

Answer: A secondary consumers

Explanation:

They are carnivores, feeding on primary consumers. The Bobcat, Raccoon, Mink, and Bass are all secondary consumers.

What is the difference between global warming and climate change? *
1 point
There is no difference, we can use either term

Climate change happens because of humans, global warming happens naturally

Global warming focuses only on temperature increases, climate change only focuses on temperature decreases

Global warming focuses only on temperature increasing, climate changes is a broader term that refers to the range of changes happening on Earth in addition to temperature changes

Answers

Answer: D: Global warming focuses only on temperature increasing, climate changes is a broader term that refers to the range of changes happening on Earth in addition to temperature changes

Explanation:

Answer:

what he/she said

Explanation:

Predict the shape of the molecule.....

Answers

Answer:

bent

Explanation:

If I perform a dilution, which is true? *
volume of solvent decreases
volume of solution increases
amount of solute increases
amount of solute decreases

Answers

Answer:

Amount of solute decreases

Explanation:

Since during dilution, the solute dissolves on the solvent hence its amount decreases.

Please help!!! I will mark you brainiest!!!

Answers

Answer:

Some positive effects of using synthetic plastic is that scientist can make it softer and biodegradable so that nature can break it down and destroy it so it won't affect the environment. And scientist can also make stronger and tougher in products so they can last longer.

Explanation:

Which type of light would make an object appear larger and closer?

Answers

Answer:

A convex lens bends light rays inward, which results in the object being perceived as larger or closer.

Explanation:

The light ray refracted from an object may look different based on how they bends light and at what angle. Convex lens bends light inwards and the refracted light appear closer and bigger whereas, a concave lens makes light ray away and smaller.

What is refraction?

Refraction is the optical phenomenon by which a light ray bends in its direction when passing from one medium to the other. For instance light ray bends when it pass from air to water or air to glass and vice versa.

The measure of bending of light in a medium  is called refractive index of that medium. Refraction makes the object appear to be closer sometimes such as in water when light bends in direction.

When light refracts from convex lens, the bending is inwards and the object is perceived to be closer and larger. Whereas, a concave lens make the bending outwards where the object appeared to be smaller and far.

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Wch of the following phrases is the best definition of science?
A. Research that determines the behavior of the physical world
B. Observation of the physical world
C. Knowledge that governs the physical world
D. A set of predictions that interpret patterns in the physical world

Answers

a because






that would make the very most sense and i saw that someone else had that answer and i need the points sorry not sorry i can’t believe they have a 20 charater limit like what the heck man 1 word and im gone all i wanted to say was A buttttt NOOOOO

Select the correct algebraic form for the equation to be used for this calculation.

n equals StartFraction R T over P V EndFraction.

n equals StartFraction P V over R T EndFraction.

n equals StartFraction R V over P T EndFraction.

Answers

Answer:

55.9 kPa

Explanation:

In the following reaction:

C6H6 + Br2 → C6H5Br + HBr

Assume 1.25 moles of C6H6 react with sufficient bromine, how many moles of C6H5Br should form?

2.50 mol
5.00 mol
0.625 mol
1.25 mol

Answers

Answer:

1.25mol

Explanation:

The equation you gave is balanced and everything is in a 1:1:1:1 ratio. Because there is excess bromine, the reaction can proceed until completion which will give you 1.25 mol C6H5Br

A student pours 800.0 mL of a 3.000 molar solution of sodium hydroxide into a 2.00 liter volumetric flask and fills the flask up with water. What is the new molarity of the solution?
A) 12.00 M
B) 1.20 M
C) 14.00 M
D) 0.0750 M

Answers

C) 14.00

(Sorry if it’s wrong)

please help!!! I have to submit this in a few!!!​

Answers

Answer:

c

Explanation:

The speed of sound through air at 20°C is 343 meters per second. The speed of sound through fresh water at 20°C is 1,482 meters per second.


Which of the following could be the speed of sound through solid steel?


A.

1,370 meters per second

B.

353 meters per second

C.

5,960 meters per second

D.

145 meters per second

Answers

Answer:

C. 5960 meters per second

What 3 parts of the water cycle are a result of gravity?

Answers

Answer:

Hey mate.....

Explanation:

This is ur answer......

While sunlight is the energy source, the greatest force propelling the water cycle is gravity. Gravity is the force of attraction between two objects, and Earth's gravity pulls matter downward, toward its center. It pulls precipitation down from clouds and pulls water downhill. Gravity also moves air and ocean water.

Hope it helps!

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Help me I’m struggling with this one

Answers

Answer:

Eukarya

Explanation:

It's larger than a prokaryotic cell and it has a nucleus.

5) A scientist adds 1.2 liters of water to a 5.0 liter solution, causing the molarity to become 0.4 M. What was the molarity of the initial solution before the dilution? ​

Answers

Explanation:

i hope i helped you in this problem

According to the molar concentration, the molarity of the initial solution before the dilution is 0.096 M.

What is molar concentration?

Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.

The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.

In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.Substitution of values in formula M₁V₁=M₂V₂ gives M₁= 0.4×1.2/5=0.096 M.

Thus, the molarity of the initial solution before the dilution is 0.096 M.

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what is meant by chemical combination? what are the laws of chemical combination?​

Answers

Answer:

In simple terms, this law states that matter can neither be created nor destroyed. In other words, the total mass, that is, the sum of the mass of reacting mixture and the products formed remains constant.

Explanation:

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What is the 11th element in period 4?

plz don't send me another tiny link

Answers

Answer: According to my ggle search its Copper!

Explanation:

hydrogen Helium lithiumberryliumboron carbon nitrogenoxygenfluorine Neonsodium.

Explanation:

sodium is the 11th

When aqueous ammonia is added to a solution containing Bi3+ and Cu2+ cations, ____________ occurs. A. Reduction to black bismuth metal.B. Precipitation of a black bismuth hydroxide.C. Precipitation of white bismuth hydroxide. D. Formation of a red-brown precipitate of Cu2[Fe(CN)6].

Answers

Answer:

C. Precipitation of white bismuth hydroxide.

Explanation:

When aqueous ammonia is added to a solution that has Bi3+ and CU2+ cations, what we would have as a chemical result is the precipitation of white Bismuth hydroxide.

The chemical reaction for this can be written as,

Bi3+ + 2NH3 + 3H2O ⇌ Bi(OH)3(s) + 3NH4

Thank you!

When you take off a wool hat, some of the electrons from your hair transfer to
the hat. When this happens, your hair can stand up on end. Why doesn't
gravity hold your hair down?
A. The distance to the center of Earth is vastly larger than between
the hat and your hair,
B. The electrical field caused by the charged hair disrupts the
gravitational field near your hair
C. The electrostatic force is stronger than the gravitational force
between Earth and your hair,
D. The gravitational force between the hat and your hair opposes
Earth's gravitational force,

Answers

Answer:

C. The electrostatic force is stronger than the gravitational force

between Earth and your hair

Explanation:

Electrostatic forces are extremely strong. When your hair becomes charged from the electrons, it causes the strands of your hair to repel (push away) from each other because they have like (the same) charges.

Which one of the following is an example of a balanced chemical reaction?
A
C3H60 + 30 2 + 3C0 2 + 3H 20
B 2C 3H 60 + 90 2+ 6CO2 + 6H 20
© C3H60 +90 2 +300 2 +3H 20
D) 2C 3H 60 + 90 2+ 6CO2 + 3H 20
C3H 60 + 40 2 + 3CO 2 + 3H 20

Answers

i think the answer would be D

An example of a balanced chemical reaction (equation) is: D. [tex]C_3H_60 + 40_2[/tex] ----> [tex]3CO_2 + 3H_20[/tex]

In Chemistry, a chemical equation is typically used to denote or represent the chemical reaction between two or more chemical elements.

A balanced chemical equation can be defined as a chemical equation wherein the number of atoms on the reactant (left) side is equal to the number of atoms on the product (right) side.

This ultimately implies that, both the charge on each atom and sum of the masses of the chemical compounds or elements in a chemical equation are properly balanced.

Ideally, the first step in balancing a chemical equation is to count the number of atoms in the reactant and product side.

                                    [tex]C_3H_60 + 40_2[/tex] ----> [tex]3CO_2 + 3H_20[/tex]

For reactants:

Carbon = 3 atoms.Hydrogen = 6 atoms.Oxygen = 1 + 8 = 9 atoms.

For products:

Carbon = 3 atoms.Hydrogen = 6 atoms.Oxygen = 6 + 3 = 9 atoms.

Since, the number of atoms on the reactant (left) side is equal to the number of atoms on the product (right) side, this is an example of a balanced chemical reaction (equation).

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