JEE Mains · Physics · STD 11 - 11. thermodynamics
An engine operates by taking a monatomic ideal gas through the cycle shown in the figure. The percentage efficiency of the engine is close to \(.......\%\)
- A \(19\)
- B \(25\)
- C \(27\)
- D \(30\)
Answer & Solution
Correct Answer
(A) \(19\)
Step-by-step Solution
Detailed explanation
\(W _{ ABCDA }=2 P _{0} V _{0}\) \(Q_{\text {in }}=Q_{A B}+Q_{B C}\) \(Q _{ AB }= nC \left( T _{ B }- T _{ A }\right)\) \(=\frac{ n 3 R }{2}\left( T _{ B }- T _{ A }\right)\) \(=\frac{3}{2}\left(P_{B} V_{B}-P_{A} V_{A}\right)\)…
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