A) 7/5
B) 8/7
C) 5/7
D) 9/7
Correct Answer: A
Solution :
Molar specific heat at constant pressure \[{{C}_{p}}=\frac{7}{2}R\] Mayers relation can be written as \[{{C}_{p}}-{{C}_{V}}=R\] \[\Rightarrow \] \[{{C}_{V}}={{C}_{P}}-R\] \[=\frac{7}{2}R-R=\frac{5}{2}R\] Hence, required ratio is \[\gamma =\frac{{{C}_{P}}}{{{C}_{V}}}=\frac{(7/2)R}{(5/2)R}=\frac{7}{5}\]
You need to login to perform this action.
You will be redirected in
3 sec
