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Three moles of an ideal gas expands reve...

Three moles of an ideal gas expands reversibly under isothermal condition form 2 L to 20 L at 300 K. The amount of heat-change (in kJ/mol) in the process is -

A

0

B

7.2

C

10.2

D

17.2

Text Solution

Verified by Experts

The correct Answer is:
D
`W=-2.303"nRT log"(V_(2))/(V_(1))`
`=-2.303xx3xx8.314xx10^(-3)xx300 log .(20)/(2)`
`=-17.2kJ//mol`
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