A Carnot engine works between a source at 500 K and a sink at 300 K. Its efficiency is

(A) 40\%. Concept. Carnot efficiency η = 1 - (T_2)/(T_1). Step 1. Substitute. 1 - (300)/(500) = 0.4 = 40\%. Answer. 40\% (Option A).

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Thermodynamics question for NEET, with solution

Q 11-11-001NEETEasy

A Carnot engine works between a source at $500\ \text{K}$ and a sink at $300\ \text{K}$. Its efficiency is