Second law: ΔS > 0 for irreversible processes in isolated systems.
The entropy of an isolated system in an irreversible process:
JEE Advanced 2026 — Physics Thermodynamics
The entropy of an isolated system in an irreversible process:
Verified 30 May 2026.
Options
- A
Decreases
- B
Remains constant
- C
Increases
- D
First increases then decreases
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
JEE Advanced Thermodynamics in other years
More JEE Advanced Thermodynamics questions
A Carnot engine operates between temperatures 600 K and 300 K. Its efficiency is:
For an ideal gas undergoing an adiabatic process, if PV^γ = constant and γ = 5/3, the work done when volume changes from V₁ to 2V₁ is:
Which of the following are state functions?
A Carnot engine operates between 600 K and 300 K. Find its efficiency (in percentage).
For an ideal gas, the ratio Cp/Cv for a monoatomic gas is
Other Physics topics for JEE Advanced
Keep practicing Thermodynamics
Work through every JEE Advanced Thermodynamics PYQ, year by year.