The four main sectors that contribute to carbon emissions are Energy, Industrial Processes, Agriculture, and waste.
Energy: This sector includes the production, distribution, and use of energy from fossil fuels such as coal, oil, and natural gas.Industrial processes: This sector includes the production of goods such as cement, steel, and chemicals, which emit GHGs during the manufacturing process.Agriculture, forestry, and other land use: This sector includes activities such as the cultivation of crops, raising livestock, and the clearing of forests, which can emit GHGs due to the decomposition of organic matter.Waste: This sector includes the collection, treatment, and disposal of waste, which can emit GHGs due to the decomposition of organic matter in landfills.These four sectors are responsible for the majority of GHG emissions globally. Reducing emissions in these sectors is essential for mitigating climate change and achieving net-zero emissions. This can be done through a variety of measures, such as increasing energy efficiency, transitioning to renewable energy sources, adopting more sustainable land use practices, and reducing waste.
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One mole of CO2(g) is expanding isothermally and reversibly from a volume of 0.100 dm3 to a volume of 100 dm3. Calculate the work in "kJ" of the expansion process if: 1/ the gas is considered real gas. (Hint: use the Van Der Waals equation for real gases to express the pressure in the work equation). 2/ The gas is considered perfect gas. Given: The constants for CO2(g) are: a= 3.59 atm L2/mol2, b= 0.0427 L/mol Answer: a) the expansion work for CO2 as real gas is W = kJ. b) the expansion work for CO2 as perfect gas is W = kJ.
Solution :
For the real gas following Vander Waals equation, reversible isothermal work done is given by :
[tex]$W= \int P \ dV$[/tex]
[tex]$W= \int \left(\frac{nR}{V-nb}-\frac{an^2}{V^2}\right) dV$[/tex]
[tex]$W_{real}=-nRT \ln \left[\frac{V_2-b}{V_1-b}\right]-an^2\left[\frac{1}{V_2}-\frac{1}{V_1}\right]$[/tex]
Given : [tex]$V_1=0.1 \ dm^3$[/tex], [tex]$$V_2 =100 \ dm^3[/tex]
[tex]$a=359 \ atm \ L^2/ mol^2, \ \ b = 0.0427 \ L/mol$[/tex]
As T is not given, assuming T = 290 K
[tex]$W_{real} = 0.0823 \times 240 \left[ \ln \left(\frac{100-0.042}{0.1-0.0427}\right)\right]-3.59\left[\frac{1}{100}-\frac{1}{0.1}\right]$[/tex]
[tex]$W_{real}= -183.06+35.864$[/tex]
[tex]$W_{real}=-147.196$[/tex]
For the perfect gas,
[tex]$W=nRT \ln\left[\frac{V_2}{V_1}\right] =(1)(0.0823)(290) \ln \left[\frac{100}{0.1}\right]$[/tex]
[tex]$W_{ideal}=169.415$[/tex] kJ
An object has balanced forces acting on it. Which of the following describes the result these balanced forces have on the object? A. It remains at rest or speeds up in the same direction. B. It speeds up in the same direction or moves at constant speed. C. It speeds up in the same direction or slows down. D. It remains at rest or moves at constant speed in the same direction.
Answer:
C.It remains at rest or moves at constant speed in the same direction.
Explanation:
First, remember the Newton's 1st law of motion which states that the object at rest will remain at rest and that in motion will stay in motion with the same speed and same direction unless acted by unbalance forces.
Balanced forces on an object occur when two forces at act on an object are equal in size and act in opposite direction. In this case, a stationary object will stay at rest while an object moving will continue to move at the same speed and same direction.
An object acted by balanced forces is said to be at equilibrium, thus the state of motion will be maintained.The object will not accelerate. A good example of an object acted by balanced forces is an object at rest or in constant motion such as a car that stopped at red-light signal or a car travelling at a constant speed.
does anyone know this please?
Answer:
1.) b
2.) c
3.) e
4.) g
5.) j
6.) k
HOPE THIS HELPS
-Todo <3
Explanation:
Answer:B, C, F, G, I, L.
Explanation: i think that these are the correct one there was not a whole lot of contects on the question
help pleaseeee. over dilutions in chemistry
Answer:
5 L
Explanation:
We'll begin by calculating the molarity of the CaCl₂ solution. This can be obtained as follow:
Mole of CaCl₂ = 0.5 mole
Volume = 2 L
Molarity =?
Molarity = mole /Volume
Molarity = 0.5 / 2
Molarity = 0.25 M
Finally, we shall determine the volume of the diluted solution. This can be obtained as follow:
Molarity of stock solution (M₁) = 0.25 M
Volume of stock solution (V₁) = 2 L
Molarity of diluted solution (M₂) = 0.1 M
Volume of diluted solution (V₂) =?
M₁V₁ = M₂V₂
0.25 × 2 = 0.1 × V₂
0.5 = 0.1 × V₂
Divide both side by 0.1
V₂ = 0.5 / 0.1
V₂ = 5 L
Thus the volume of the diluted solution is 5 L
H IT H-C --H + Ħ Н The model above shows the structural formula for ethane. What is the chemical formula for ethane? OA. C2H6 OB. 2CH3 Oc. 8CH OD. C6H2
Answer:
B
Explanation:
2. Suppose two astronauts were outside of the space shuttle orbiter while orbiting Earth. The audio speaker in the helmet of one of the astronauts quits working. The other astronaut is only one meter away, so she shouts a message to him. Can he hear her? Explain.
omg pls help i dunno what the frick frack this is
Answer:
1. Mass of KCl produced = 774.8 g of KCl
2. Mass of KNO₃ produced = 13.837g
3. Moles of NaOH made = 0.846 moles
4. Moles of LiCl produced = 0.846 moles
5. Moles of CO₂ produced = 207.6 moles
Explanation:
1. From the equation of reaction, 1 mole of ZnCl₂ produces, 2 moles of KCl.
5.02 moles of ZnCl₂ will produce, 2 × 5.02 moles of KCl = 10.4 moles of KCl
Molar mass of KCl = (39 + 35.5) g/mol = 74.5 g/mol
10.4 moles of KCl = 10.4 × 74.5 g
Mass of KCl produced = 774.8 g of KCl
2. Mole ratio of KNO₃ and KOH = 1:1
O.137 moles of KOH will produce 0.137 moles of KNO₃
Molar mass of KNO₃ = 101 g/mol
Mass of KNO₃ produced = 0.137 × 101 g = 13.837g
3. Molar mas of Ca(OH)₂ = 74.0 g
Moles of Ca(OH)₂ in 31.3 g = 31.3/74.0 = 0.423 moles of Ca(OH)₂
Mole ratio of NaOH and Ca(OH)₂ in the reaction = 2 : 1
Moles of NaOH made = 2 × 0.423 = 0.846 moles
4. Molar mass of MgCl₂ = 95.0 g
Moles of MgCl₂ in 40.2 g = 40.2/95.0 = 0.423 moles
From the reaction equation, mole ratio of MgCl₂ and LiCl = 1:2
Moles of LiCl produced = 2 × 0.423 = 0.846 moles
5. From the equation of reaction, 1 mole of C₆H₁₀O₅ produces 6 moles of cO₂
34.6 moles of C₆H₁₀O₅ will produce 34.6 × 6 moles of CO₂
Moles of CO₂ produced = 207.6 moles
All chemical reactions need the same amount of activation energy
A) true
B) false
I'm obsessed with me as much as you
Say you'd die for me I'd die for me too
And if I lost you I'd still have me I can't lose
When you say that you're obsessed with me, me too
Can someone answer this, NO ROBOTS!!!!
Genetic engineering improved the lives if individuals with insulin because it helps the body use and store sugar, since people with diabetes can't produce insulin.
Type the correct answer in the box. Express your answer to two significant figures.
A reaction between 1.7 moles of zinc Ipdide and excess sodium carbonate ylelds 12.6 grams of zinc carbonate. This is the equation for the
reaction:
Na2CO3 + Zniz - 2Nal +
ZnCoz.
What is the percent yield of zinc carbonate?
The percent yield of zinc carbonate is
5.91
1X.
Answer: The percent yield of zinc carbonate is 5.91 %
Explanation:
To calculate the moles :
[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]
[tex]\text{Moles of} ZnCO_3=\frac{12.6 g}{125.4g/mol}=0.100moles[/tex]
[tex]ZnI_2[/tex] is the limiting reagent as it limits the formation of product and [tex]Na_2CO_3[/tex] is the excess reagent.
[tex]Na_2CO_3+ZnI_2\rightarrow 2NaI+ZnCO_3[/tex]
According to stoichiometry :
1 mole of produce = 1 mole of
Thus 1.7 moles of [tex]ZnI_2[/tex] will produce=[tex]\frac{1}{1}\times 1.7=1.7moles[/tex] of [tex]ZnCO_3[/tex]
Theoretical yield of [tex]ZnCO_3=moles\times {\text {Molar mass}}=1.7moles\times 125.4g/mol=213.2g[/tex]
percentage yield = [tex]\frac{\text {Experimental yield}}{\text {Theoretical yield}}\times 100=\frac{12.6g}{213.2g}\times 100=5.91\%[/tex]
Answer:
the other person was right EXCEPT it says in 2 significant numbers so the answer is 5.9
Explanation:
i hope this helps. have a wonderful day :))
What evidence from the experiment shows that conduction occurred? In your answer, be sure to include the materials involved in the transfer of heat through conduction.
Answer:
Sample Response: The melting of the chocolate pieces one by one showed that it was caused by heat flowing through the foil bridge. The transfer of heat happened between the foil bridge and the chocolate pieces because they were touching each other.
Answer:
The conduction was made by the foil which was touching the chocolate made the chocolate slowly melt because of the tea light giving heat to the foil the foil conducted it to the chocolate causing it to melt.
Explanation:
Conduction is the transfer of heat through touch.
Convection is the transfer of heat through liquid or gas.
Radiation is how heat/energy travels through space.
Hope this helped!
The substances below are listed by increasing specific heat capacity value. Starting at 30.0 °C, they each absorb 100 kJ of thermal energy. Which one do you expect to increase in temperature the most? (3 points)
a
Silver, 0.239 J/(g °C)
b
Aluminum, 0.921 J/(g °C)
c
Lithium, 3.56 J/(g °C)
d
Water, 4.184 J/(g °C)
Answer:
the answer is B
Explanation:
help me please Iknow it's easy but I need answers asap
Answer:
1-if u are answering light waves question , then the answer is translucent mirror or objects
2- Oxygen
3- compass
If you want to change the type of element your atom is, you can either
(2 RIGHT CHOICES)
add a proton
add a neutron
add an electron
Answer:
Add a proton and add a neutron
A gas has a volume of 15.0 ml at 25 degree Celsius. What is the volume of the gas at 50 degree Celsius.
Answer:
30.0ml
Explanation:
Half of fifty is 25 and 25 represents 15.0ml so 15.0ml×2=30.0ml there for 25+25 is 50
Q3. When copper (II) chloride reacts with silvernitrate, copper (II) nitrate and silverchloride are formed.Write the balanced equation for the reaction given above:A.CuCl2(aq) + 2 AgNO3(aq) →Cu (NO3)2(aq) + 2 AgCl(s)B.CuCl2(aq) + NaNO3(aq) →Cu (NO3)2(aq) + AgCl(s)C.CuCl2(aq) + 2 NaNO2(aq) →Cu (NO2)2(aq) + 2 AgCl(s)D.CuCl(aq) + NaNO3(aq) →Cu NO3(aq) + AgCl(aq
Answer:
See explanation
Explanation:
When we are writing chemical reaction equations, we must ensure that such equations are balanced. That is, the number of atoms of each element on both sides of the reaction equation are exactly the same.
After we identify the formula of each compound in the reaction, then we proceed the write the balanced reaction equation as follows;
CuCl2 + 2AgNO3 -------> Cu(NO3)2 + 2AgCl
Four metals were kept in contact with each other. The table below shows the initial temperature of the metals.
Metal Initial Temperature
А
30 °C
B
42 °C
С
25 °C
D
16°C
From which metal will heat flow into all the other metals?
Metal A
Metal B
Metal C
Metal D
Answer:
The answer is B
Explanation:
I'm just big-brained
And because it's hotter than the rest and since all of them are cold "B" is just going to make them warmer.
The products of self-ionization of water are
H+
H20
H+ and OH-
OH-
Answer:
3
H+ and OH-
Explanation:
1. How many moles are in 3.50 grams of NaCl?
0.0600 mol
O 203 mol
O 78.4 mol
O 0.156 mol
can silver nitrate test the purity of water
Metallic bonding is sometimes referred to as a "sea of electrons." I sometimes picture is as cheerios (nuclei) floating around in milk (valence electrons). And while metallic bonding has the name "bond" it can be very different from Ionic and Covalent Bonds.
In complete sentences describe how Metallic bonds are alike, and how they are different from the other bond types we have studied.
True or False: Only animals can move pollen from plant to plant.
A. True
B. False
i think false because of the wind or insects
can anybody help me with this
Answer:
Explanation:
If another predator was introduced to this food web, this food web would fail because it won't be balanced well. Let's say the predator eats more food than the eagle. Then the eagle would have less food for itself, and it might go endangered, and vice versa if the eagle eats more. Either way, this would cause almost no worms left and that means there would be an overflow of the rats because there would be no worms for them to be eaten by. This would cause a shortage of crops as well.
I hope this made sense!
PLEASE HELP I'M SO DOOMED
A balloon that contains 2.8 mol of helium gas has a volume of 31 L. If 3.5 g of helium is added, what will be the new volume of the balloon? Assume the temperature and pressure remain the same. The molar mass of helium is 4.00 g/mol.
a) 186 L
b) 70 L
c) 24 L
d) 41 L
Do not post links
Answer:
D
Explanation:
31 / 2.8 = 11.0714286 L per mole of helium
3.5 / 4 = 0.875 moles
2.8 + 0.875 = 3.675 moles
11.0714286 x 3.675 = 40.6875 L
which system does the endocrine gland influence to fight infections
Answer:
Thymus. This gland makes white blood cells called T-lymphocytes that fight infection and are crucial as a child's immune system develops
i have six protons and six neutrons. i need help whats the answerrrrrr
Answer:
Carbon-12: with 6 protons and 6 neutrons and an atomic mass of 12.
Explanation:
How do the mass number and atomic change as a particle goes through alpha decay?
The air we breathe is a(n) _____.
Which statement regarding this equation is TRUE?
4Fe (s) + 3O2 (g) —> 2Fe2O3 (s)
There are 2 reactants.
The coefficient on O2 is 8.
Iron (III) oxide is a gas.
There are 5 atoms of oxygen on the reactant side.
Answer:
iron (III) oxide is a gas
Balance the following chemical equation:
C2H60+02 → CO2 + H20
Answer:
Explain: In order to balance the chemical equation, you need to make sure the number of atoms of each element on the reactant side is equal to the number of atoms of each element on the product side. In order make both sides equal, you will need to multiply the number of atoms in each element until both sides are equal.