A monatomic gas undergoes a cycle consisting of two isothermal and two isobars.If the minimum and maximum temperature of the gas during the cycle are T 1 = 400 K and T 2 =800K, respectively, and the ratio of maximum to minimum volume is 4, calculate the efficiency of the cycle.

Dear Student ,
                        we know that efficiancy of any cyclic process depands only on temprature difference according to carnot so η=(1-400800)×100=50%

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