Three moles of an ideal gas kept at a constant temperature at 300K are compressed from a volume of 4L to 1L. The work done in the process is
A
−10368J
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B
−110368J
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C
12000J
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D
120368J
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Solution
The correct option is A−10368J Work done in an isothermal process is given by W=2.3026nRTlog10V2V1 Here, n=3,R=8.31J/moloC T=300K, V1=4L, V2=1L Hence, W=2.3026×3×8.31×300×log1014 = 17221.15(−2log102) = −17221.15×2×0.3010=−10368J