At 20°C, a sample of solid spontaneously sublimes to a gas. This change in state is accompanied by which of the following changes in the solid sample?
A)entropy & energy decrease
B)entropy & energy increase
C)entropy decreases & energy increases
D)energy decreases & entropy increases

Question

Quizplus · Accepted Answer

Sublimation, the transition from solid to gas, results in an increase in entropy due to the greater disorder in the gaseous state. Energy also increases because energy is absorbed to overcome the forces holding the solid together.

At 20°C, a Sample of Solid Spontaneously Sublimes to a Gas