A) 2/5
B) 3/5
C) 3/7
D) 5/7
Correct Answer: B
Solution :
[b] By first law, \[\Delta Q=\Delta U+\Delta W\] \[=\frac{f}{2}nRT+P\int_{{}}^{{}}{dV=\frac{f}{2}}nRT+PV\] \[\Delta Q=\frac{f}{2}nRT+nRT=\frac{3}{2}nRT+nRT=\frac{5}{2}nRT\] \[\therefore \text{Fraction=}\frac{\left( 3/2 \right)nRT}{\left( 5/2 \right)nRT}=\frac{3}{5}\]You need to login to perform this action.
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