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A gas is confined in the cylinder under a light piston which is connected to the bottom of the cylinder with a weightless spring as shown in figure, under pressure p = 0.1 MPa andtemperature To 27°C. The initial pressure of the gas is equal to the external atmosphericpressure. If the gas under the piston is fully pumped out, the piston will reach the bottom of thevessel compressing the spring completely just touching the bottom. Now we heat the gas toincrease its volume to n = 1.2 times then the final temperature of gas isA 528 KB 432 KC 745 KD 620 K |
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