Second Law & Heat Engines: JEE Questions & Solutions
6 previous-year JEE Physics questions on Second Law & Heat Engines, each with a worked step-by-step solution.
Previous-year questions
- 01
Water of mass m gram is slowly heated to increase the temperature from T1 to T2. The change in entropy of the water, given specific heat of…
MCQEasyJEE 2025 - 02
A Carnot engine (E) is working between two temperatures 473 K and 273 K. In a new system two engines - engine E1 works between 473 K to 373…
MCQEasyJEE 2025 - 03
A Carnot engine with efficiency 50 takes heat from a source at 600 K. In order to increase the efficiency to 70, keeping the temperature of…
MCQEasyJEE 2023 - 04
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Efficiency of a…
MCQEasyJEE 2023 - 05
A Carnot engine operating between two reservoirs has efficiency 13. When the temperature of the cold reservoir is raised by x, its…
MCQEasyJEE 2023 - 06
An engine operating between the boiling and freezing points of water will have: (1) efficiency more than 27. (2) efficiency less than the…
MCQEasyJEE 2023
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