$N$ moles of an ideal diatomic gas are in a cylinder at temperature $T$. suppose on supplying heat to the gas, its temperature remain constant but $n$ moles get dissociated into atoms. Heat supplied to the gas is
  • A
    Zero
  • B$\frac{1}{2}nRT$
  • C$\frac{3}{2}nRT$
  • D$\frac{3}{2}(N - n)RT$
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