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The temperature of 2 moles of a gas is c...

The temperature of 2 moles of a gas is changed from `20^(@)C` to `30^(@)C` when heated at constant volume. If the molar heat capacity at constant volume is 8 J `mol^(-1)K^(-1)`, the change in internal energy is

A

80 J

B

20 J

C

160 J

D

16 J

Text Solution

Verified by Experts

The correct Answer is:
C

`dU=nc_(V)dT`
`=2xx8xx10`
`=160J`
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