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When an ideal monoatomic gas is heated a...

When an ideal monoatomic gas is heated at constant pressure, fraction of heat energy supplied which increases the internal energy of gas, is

A

`2/5`

B

`3/5`

C

`3/7`

D

`3/4`

Text Solution

Verified by Experts

The correct Answer is:
B
For monoatomic gas
`gamma=(C_P)/(C_V) = 5/3` we know `DeltaQ = nC_(P)DeltaT`
and `DeltaU - nC_(V0DeltaT implies (DeltaU)/(DeltaQ) = (C_V)/(C_P) = 3/5`
i.e., fraction of heat energy to increase the internal energy be `3//5`.
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