JEE MAIN - Chemistry (2020 - 8th January Evening Slot - No. 9)
At constant volume, 4 mol of an ideal gas when
heated from 300 K to 500K changes its internal
energy by 5000 J. The molar heat capacity at
constant volume is _______.
Answer
6.25
Explanation
$$\Delta $$U = nCv$$\Delta $$T
$$ \Rightarrow $$ 5000 = 4 × Cv(500 – 300)
$$ \Rightarrow $$ Cv = 6.25 JK–1mol–1
$$ \Rightarrow $$ 5000 = 4 × Cv(500 – 300)
$$ \Rightarrow $$ Cv = 6.25 JK–1mol–1
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