Phosphorus pentachloride [penta-KLOOR-ide] gas is in a container in which it is in equilibrium with liquid phosphorous trichloride [try-KLOOR-ide] and chlorine gas. Which of the following statements would be true if the pressure inside the container were doubled by adding argon gas, holding the temperature constant?
A.
The amount of chlorine gas would increase
B.
The amount of chlorine gas would decrease
C.
The amount of chlorine gas would remain the same
D.
Solid phosphorus argonite [AR-gah-nite] would form
