A fixed mass of oxygen gas performs a cyclic process ABC A as shown in the figure. Efficiency of the cycle will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
A 
B isochoric as P is directly proportional to T
W AB =0
Q AB = nC v (3T - T)
= 
nR2T = 5nRT
B 
C isothermal and thus Q = W as there won't be any change in internal energy.
= 3nRTln 3= Q BC
C 
A isobaric process
W CA = P (V A - V c ) = nR (t a – 3T) = -2nRT
Efficiency of a cyclic process is given by
Efficiency 
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