Chapter 13.5, Problem 37PP

Hydrogen chloride can be made by reacting hydrogen gas and chlorine gas.
${\text{H}}_2(g)+{\text{Cl}}_2(g)+\text{ heat }\rightleftarrows 2\text{HCl}(g)$
For each of the following changes at equilibrium, indicate whether the equilibrium shifts in the direction of product, reactants, or does not change:
a. adding more ${\text{H}}_2(\text{g})$
b. increasing the temperature
c. removing some $\text{HCl}(g)$
d. adding a catalyst
e. removing some ${\text{Cl}}_2(g)$