In a thermodynamic process, an ideal monoatomic gas follows the law $TP^{\large\frac{3}{5}} =$ constant. If temperature of 2 moles of gas is raised from T to 4 T, then what is the heat given to the gas?

Question

$\begin{array}{1 1} 12.5\;R \\ 25\;R \\ 50 R \\ 100 R \end{array}$