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5 moles of gas were heated from 100^(@)C...

5 moles of gas were heated from `100^(@)C` to `120^(@)C` at constant volume. The internal energy was changed by 200 J. what is the specific heat capacity of the gas?

A

5 J/ mol K

B

4 J/mol K

C

2 J/mol K

D

10 J/mol K

Text Solution

Verified by Experts

The correct Answer is:
D
`C_(V)=(du)/(ndT)=(200)/(5xx20)=2`
specific heat capacity`=nC_(V)`
`=2xx2=4J//mol" K"`
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