AP EAMCET · PHYSICS · Thermodynamics
The work done by a Carnot engine operating between \(300 \mathrm{~K}\) and \(400 \mathrm{~K}\) is \(400 \mathrm{~J}\). The energy exhausted by the engine is
- A \(800 \mathrm{~J}\)
- B \(1200 \mathrm{~J}\)
- C \(400 \mathrm{~J}\)
- D \(1600 \mathrm{~J}\)
Answer & Solution
Correct Answer
(B) \(1200 \mathrm{~J}\)
Step-by-step Solution
Detailed explanation
Given, source temperature, \(T_1=400 \mathrm{~K}\) Sink temperature, \(T_2=300 \mathrm{~K}\) Work done, \(W=400 \mathrm{~J}\) We know that, efficiency of carnot heat engine \(\eta=\frac{W}{Q}=1-\frac{T_2}{T_1}\)…
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