100.3kcal of heat will be absorbed.
2moles of NO absorb 43kcal.
I mole of NO weighs 14 +16 = 30g so 2 moles weigh 60g.
So 60g absorb 43kcal
So 1g absorb 43/60 kcal
So 136g absorb (43/60) x 136 = 97.47 kcal
Answer:
4.41
Explanation:
Step 1: Write the balanced equation
CO(g) + 3 H₂(g) = CH₄(g) + H₂O(g)
Step 2: Calculate the respective concentrations
![[CO]_i = \frac{0.500mol}{5.00L} = 0.100M](https://tex.z-dn.net/?f=%5BCO%5D_i%20%3D%20%5Cfrac%7B0.500mol%7D%7B5.00L%7D%20%3D%200.100M)
![[H_2]_i = \frac{1.500mol}{5.00L} = 0.300M](https://tex.z-dn.net/?f=%5BH_2%5D_i%20%3D%20%5Cfrac%7B1.500mol%7D%7B5.00L%7D%20%3D%200.300M)
![[H_2O]_{eq} = \frac{0.198mol}{5.00L} = 0.0396M](https://tex.z-dn.net/?f=%5BH_2O%5D_%7Beq%7D%20%3D%20%5Cfrac%7B0.198mol%7D%7B5.00L%7D%20%3D%200.0396M)
Step 3: Make an ICE chart
CO(g) + 3 H₂(g) = CH₄(g) + H₂O(g)
I 0.100 0.300 0 0
C -x -3x +x +x
E 0.100-x 0.300-3x x x
Step 4: Find the value of x
Since the concentration at equilibrium of water is 0.0396 M, x = 0.0396
Step 5: Find the concentrations at equilibrium
[CO] = 0.100-x = 0.100-0.0396 = 0.060 M
[H₂] = 0.300-3x = 0.300-3(0.0396) = 0.181 M
[CH₄] = x = 0.0396 M
[H₂O] = x = 0.0396 M
Step 6: Calculate the equilibrium constant (Kc)
![Kc = \frac{[CH_4] \times [H_2O] }{[CO] \times [H_2]^{3} } = \frac{0.0396 \times 0.0396 }{0.060 \times 0.181^{3} } = 4.41](https://tex.z-dn.net/?f=Kc%20%3D%20%5Cfrac%7B%5BCH_4%5D%20%5Ctimes%20%5BH_2O%5D%20%7D%7B%5BCO%5D%20%5Ctimes%20%5BH_2%5D%5E%7B3%7D%20%7D%20%3D%20%5Cfrac%7B0.0396%20%5Ctimes%200.0396%20%7D%7B0.060%20%5Ctimes%200.181%5E%7B3%7D%20%7D%20%3D%204.41)
Answer:
Kinetic Energy is the amount of motion in an object. This comes from Potential Energy, or how much force there can be. Kinetic Energy is current motion.
Answer is: there is 0,592 moles of CF₂Cl₂.
m(CF₂Cl₂) = 71,66 g.
n(CF₂Cl₂) = m(CF₂Cl₂) ÷ M(CF₂Cl₂).
n(CF₂Cl₂) = 71,66 g ÷ 120,91 g/mol.
n(CF₂Cl₂) = 0,592 mol.
M - molar mass substance.
m - mass of substance.
n - amount of substance.
Mass no. = Protons + Neutrons
Mass no.= 6 + 8
= 14
If you look at the periodic table, you will see that the carbon atom has a mass number of 12. But if you compare with this carbon, it is 14. This is because this carbon atom is an isotope. The isotope is called carbon-14.
