A) 200 H
B) 400 R
C) 800 J
D) 1200 R
Correct Answer: B
Solution :
Specific heat for a mono-atomic gas \[{{C}_{V}}=\frac{3}{2}R\] \[\therefore \]Heat, \[dQ=\mu {{C}_{V}}\Delta T\] \[dQ=4\times \frac{3}{2}\times R(473-273)\] \[=4\times \frac{3}{2}\times R\times 200\] \[\therefore \] \[dQ=4\times 300R\] \[(\because \mu =4)\] \[=1200R\]
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