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At 27^@C two moles of an ideal monatomic...

At `27^@C` two moles of an ideal monatomic gas occupy a volume V. The gas expands adiabatically to a volume `2V`. Calculate
(a) final temperature of the gas
(b) change in its internal energy and
(c) the work done by the gas during the process. [ `R=8.31J//mol-K`]

A

`-2767.23J`

B

`2767.23J`

C

`2500J`

D

`-2500J`

Text Solution

Verified by Experts

The correct Answer is:
B
`T_(2)=T_(1)((V_(1))/(V_(2)))^(gamma-1),dW=(nR)/(gamma-1)[T_(1)-T_(2)]`
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