Q.

Which one among the following is the correct option for right relationship between CP and CV for one mole of ideal gas       [2021]

1 CV=RCP  
2 CP+CV=R  
3 CP-CV=R  
4 CP=RCV  

Ans.

(3)

CP=CV+nR

For one mole of ideal gas,

CP=CV+R  or  CP-CV=R