JEE PYQ: Thermal Properties Of Matter Question 2
Question 2 - 2021 (16 Mar 2021 Shift 2)
For an ideal heat engine, the temperature of the source is 127°C. In order to have 60% efficiency the temperature of the sink should be ____°C. (Round off to the Nearest Integer) (write modulus or absolute value of the temperature)
Show Answer
Answer: -113
Solution
$\eta = 0.60 = 1 - \frac{T_L}{T_H}$, so $T_L = 0.4 \times 400 = 160$ K $= -113°C$
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