14. Which one of the following processes has an enthalpy change positive? a) Ionization energy
b) Electron affinity
c) Combustion
d) Exothermic reaction

if the concentration of products is decreased, the equilibrium will shift toward the products). add an inert gas (one that is not involved in the reaction) to the constant-volume reaction mixture: this will increase the total pressure of the system, but will have no effect on the equilibrium condition.

explanation:

i think it's letter a.