A) 1 : 1
B) 7 : 2
C) 7 : 5
D) 5 : 7
Correct Answer: B
Solution :
\[-\frac{dQ}{dW}=\frac{dQ}{dQ-dE}\]; \[dE=dW+dQ\]; \[-dW=dQ-dE\] \[=\frac{n{{c}_{p}}\,dT}{n{{c}_{p}}dT-n{{c}_{v}}dT}\]\[=\frac{{{c}_{p}}}{({{c}_{p}}-{{c}_{v}})}\] \[=\frac{7R}{2R}\]{for diatomic of gas \[{{c}_{p}}=\frac{7R}{2}\]}You need to login to perform this action.
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