A diatomic gas ( =1.4) does 200 J of work when it is expanded isobarically. Find the heat given to the gas in the process.

Step-by-step solution

For a diatomic gas C_V= 5 2 R and C_p= 7 2 R The work done in an isobaric process is aligned W & =p (V₂-V₁ )=n R (T₂-T₁ ) T₂-T₁ & = W n R aligned The heat given in an isobaric process is aligned Q & =n C_p (T₂-T₁ ) n C_p W n R & = 7 2 W & = 7 2 200 ~J & =700 ~J aligned