At a given temperature and pressure,which of the following would be expected to have the greatest molar entropy?

Question

Quizplus · Accepted Answer

Generally, entropy increases with increasing temperature and disorder. Among the given choices, the gas phase (option C) is expected to have the highest entropy because it has the most disorderly arrangement of molecules, higher kinetic energy, more available microstates, and larger configurational entropy. The liquid (option B) and solid (option A) phases have less entropy than gas because they are more ordered and their molecules are more closely packed. So, they have fewer available energy states and fewer ways of arranging themselves. Therefore, option C is expected to have the greatest molar entropy.

At a Given Temperature and Pressure,which of the Following Would