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The specific heat of a gas at constant v...

The specific heat of a gas at constant volume is `20J/mol ^@K`. When two moles of such gas is heated through `10^@C`at constant pressure, what is the increase in internal energy and work done ?
`(R= 8J/mol ^@ K)`

A

`200 J, 160 J`

B

`400 J, 260 J`

C

`400 J, 160 J`

D

`200 J, 460 J`

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