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5' moles of oxygen is heated at constant...

5' moles of oxygen is heated at constant volume from `10^(@)C` to `20^(@)C`. What will be the change in the internal energy of the gas in calories? (For the gas `C_(P)=7cal//gm" "mol//.^(@)C&R=2cal//mol" ".^(@)C`)

A

50

B

100

C

150

D

250

Text Solution

Verified by Experts

The correct Answer is:
D
`d u=nC_(V)dT`
`=5xx(C_(p)-R)dT=5(7-2)xx10`
=250
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