Sarthaks Test
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A cycle followed by an engine (made of one mole of perfect gas in a cylinder with a piston) is shown in Fig. 12.10.

A to B : volume constant

B to C : adiabatic

C to D : volume constant

D to A : adiabatic

VC = VD = 2VA = 2VB 

(a) In which part of the cycle heat is supplied to the engine from outside?

(b) In which part of the cycle heat is being given to the surrounding by the engine?

(c) What is the work done by the engine in one cycle? Write your answer in term of PA, PB, VA.

(d) What is the efficiency of the engine?

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(a) A to B

(b) C to D

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