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Q.

One mole of an ideal gas at 300K is expanded isothermally from an initial volume of one litre to 10 litres. The Δ E for this process is  

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a

zero 

b

1381.a cal  

c

9 lit atm

d

16.7 cal 

answer is D.

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Detailed Solution

If the gas is ideal, its expansion at constant  
For isothermal expansion ΔE=0

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