The critical temperature of a substance is the
A)highest temperature at which the liquid phase can exist in equilibrium with the gas phase.
B)temperature above which the compound decomposes.
C)temperature at which all three phases can exist in equilibrium.
D)temperature at which sublimation occurs.

Question

Quizplus · Accepted Answer

The critical temperature is the highest temperature at which the liquid phase can exist in equilibrium with the gas phase. Beyond the critical temperature, the substance cannot exist in the liquid state, and any increase in temperature will cause it to become a gas.

The Critical Temperature of a Substance Is the