1.

A system changes from the state \[({{P}_{1}},\ {{V}_{1}})\] to \[({{P}_{2}}{{V}_{2}})\] as shown in the figure.  What is the work done by the system                                                                       [CPMT 1981]

A.            \[7.5\times {{10}^{5}}\ joule\]                                         
B.            \[7.5\times {{10}^{5}}\ erg\]
C.            \[12\times {{10}^{5}}\ joule\]
D.            \[6\times {{10}^{5}}\ joule\]
Answer» D.            \[6\times {{10}^{5}}\ joule\]


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