A diatomic gas (`gamma` = 1.4) does 300J work when it is expanded isobarically. The heat given to the gas in this process is

Options

A. 1050 J
B. 950 J
C. 600 J
D. 550 J

Answer

A

Explanation

`gamma = 1.4`
`dw=300`.
`(dw)/(Dq)1-(1)/(gamma)`.
`rArr (300)/(Dq)=1-(1)/(1.4)`.
`rArr (300)/(d Q)=(1.4-1)/(1.4)`
`rArr (300)/(d Q)=(0.4)/(1.4)`
`rArr d Q =(300xx1.4)/(0.4)`
`rArr d Q=1050 J`.