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EAMCET Engineering 2009 Solved Paper

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Question : 15

Total: 160

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
‌Q1=6000J,‌‌Q2=−5500J;‌‌Q3=−3000J;
‌Q4=3500J
‌W1=2500J;‌‌W2=−1000J;‌‌W3=−1200J;
‌W4=xJ.
The ratio of the net work done by the gas to the total heat absorbed by the gas is η. The values of x and η respectively are

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

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