A 0.10-mol sample of H2(g) and a 0.10-mol sample of Br2(g) are placed in a 2.0-L container. The reaction H2(g) + Br2(g) 2 HBr(g) is then allowed to come to equilibrium. A 0.20 mol sample of HBr is placed into a second 2.0-L sealed container at the same temperature and allowed to reach equilibrium with H2 and Br2.

Question

A 0.10-mol sample of H2(g) and a 0.10-mol sample of Br2(g) are placed in a 2.0-L container. The reaction H2(g) + Br2(g) <----> 2 HBr(g) is then allowed to come to equilibrium. A 0.20 mol sample of HBr is placed into a second 2.0-L sealed container at the same temperature and allowed to reach equilibrium with H2 and Br2.

Which of the following will be different in the two containers at equilibrium? Which will be the same?

a. Amount of Br2
b. Concentration of H2
c. The ratio [HBr]/[H2][Br2]
d. The ratio [HBr]/[Br2]
e. The ratio [HBr]^2/[H2][Br2]
f. The total pressure in the container

Please explain each of your answers.

Thanks so much in advance!