At 1 atm, a liquid is heated above its normal boiling point.
-ΔS_univ for this process is

Question

At 1 atm, a liquid is heated above its normal boiling point. -ΔS_univ for this process is

Quizplus · Accepted Answer

When a liquid is heated above its normal boiling point at a constant pressure of 1 atm, the process is irreversible and spontaneous because the system tends to reach a higher entropy state (ΔS > 0). The increase in entropy of the system (liquid) is greater than the decrease in entropy of the surroundings (heat source), resulting in a positive change in the total entropy of the universe (ΔS_univ > 0). Therefore, the correct answer is C, greater than zero.

At 1 Atm, a Liquid Is Heated Above Its Normal