Q20 · CSIR-NET Chemistry, June 2018

Paper: CSIR-NET June 2018 · Subject: Physical Chemistry · Chapter: Thermodynamics · Topic: Laws State Functions · Marks: 2 · Difficulty: Easy

The change in entropy for a reversible adiabatic process is

(a)Maximum

(b)Minimum

(c)Zero

(d)Positive

Answer

Answer: C ✓ checked by 4AB · confidence high

Explanation

Reversible adiabatic: dq_rev = 0, so dS = dq_rev/T = 0 — an isentropic process.

Study loop for Thermodynamics