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Q.

One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 litres.  ∆E for this process is R=2cal  mol-1  K-1

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a

163.7 cal

b

zero

c

138.1 cal

d

9 L atm

answer is B.

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Detailed Solution

For isothermal process ∆E=0  because ∆T=0
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