Answer
The change in volume does not affect the position of the equilibrium in b.
Work Step by Step
The change in volume does not affect the position of the equilibrium if the amount of moles of gas in the balanced equation of the products is equal to the same as the reactants.
a. 1 and 0. X
b. 2 and 2. OK
c. 0 and 1. X
d. 1 and 2. X
e. 1 and 2. X