In a isobaric process the work done by a di-atomic gas is 10 J , the heat given to the gas will be :

Options

A. 35 J
B. 30 J
C. 45 J
D. 60 J

Answer

A

Explanation

For constant pressure process
`(W)/(Q) =(n R Delta T)/( nC_(P) DeltaT)=(nR DeltaT)/(n((f)/(2)+1)R Delta T)=(1)/(f//2 +1)`
`(W)/(Q) =(1)/(((5)/(2)+1))=(2)/(7) rArr Q=(7)/(2) W =(7)/(2) xx 10 =35 J`