1.

An ideal gas is subjected to cyclic process involving four thermodynamic states, the amounts of heat (Q) and work (W) involved in each of these states are Q_(1)= 6000 J ,Q_(2)= -5500 J, Q_(3) = -3000 J,Q_(4) =3500 J W_(1) = 2500 J, W_(2) = -1000 J,W_(3) =-1200 J:W_(4) = x J The ratio of the net work done by the gas to the total heat absorbed the gas is eta . The values of x and eta respectively are

Answer»

500 , 7.5%
700 , 10.5%
1000 , 21%
1500 , 15%

ANSWER :B


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