A) \[3276\text{ }J\]
B) \[1638\text{ }J\]
C) \[819\text{ }J\]
D) \[409.5\text{ }J\]
Correct Answer: B
Solution :
\[{{T}_{1}}=273K,\,\,{{T}_{2}}=2\times 273\] (on doubling P at const V, T doubles) \[\Delta T=273K,\,Q=n{{C}_{v}}dt,\] \[ms=3J/g/K,n{{C}_{v}}=3\]\[\Rightarrow \] \[\frac{1}{4}\times {{C}_{V}}=3\] \[\therefore \] \[{{C}_{V}}=12\,J/mol/K,\,\,n'{{C}_{V}}=\frac{1}{2}\times 12=6\] \[Q=n'{{C}_{V}}dt=6\times 273=1638J\]You need to login to perform this action.
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