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

When an ideal diatomic gas is heated at constant pressure, the fractio

1.	When an ideal diatomic gas is heated at constant pressure, the fraction of the heat energy supplied which increases the internal energy of the gas is ………..
Answer» `2/5` `3/5` `3/7` `5/7` Solution :For diatomic gas `C_P=7/2` and `C_V=5/2` `THEREFORE gamma=C_P/C_V=7/5` Now `DELTAQ=muC_P DeltaT` `DeltaU=muC_VDeltaT` `therefore (DeltaU)/(DeltaQ)=C_V/C_P` `=1/(7/5)` `=5/7`