Chapter 15, Problem 75E

Coal, which is primarily carbon, can be converted to natural gas, primarily ${\text{CH}}_{\text{4}}$, by this exothermic reaction.

$\text{C}(s)+2{\text{H}}_{\text{2}}\rightleftharpoons {\text{CH}}_{\text{4}}(g)$

If this reaction mixture is at equilibrium, predict the effect (shift right, shift left, or no effect) of these changes.

a. adding more C to the reaction mixture

b. adding more ${\text{H}}_{\text{2}}$ to the reaction mixture

c. raising the temperature of the reaction mixture

d. lowering the volume of the reaction mixture

e. adding a catalyst to the reaction mixture