Q.

An ideal gas of one mole is undergoing a cyclic process ABCA, in which CA is isothermal process, as shown in the indicator diagram (P-V diagram). Find the work done in one cycle? (Take loge5 = 0.7)
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a

21.5 PoVo

b

3.5 PoVo

c

23.5 PoVo

d

16.5 PoVo

answer is C.

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Detailed Solution

(DW)AB = 20 PoVo , (DW)BC = 0 ,
(W)CA = nTRloge(V2/V1) , DW = -3.5 PoVo

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An ideal gas of one mole is undergoing a cyclic process ABCA, in which CA is isothermal process, as shown in the indicator diagram (P-V diagram). Find the work done in one cycle? (Take loge5 = 0.7)