In reaction equilibria occuring between pure condensed phases and a gas phase, the equilibrium constant, K

A. can be written solely in terms of those species which occur only in the gas phase

B. is always independent of the species that occur in the gas phase

C. can be written solely in terms of those species which occur only in the pure condensed phases

D. depends only on the concentration of pure species present in the mixture of condensed phases

Answer: Option A