Calculate enthalpy change when $2.38\;g$ of carbon monoxide vapourises at its normal boiling point. $\Delta H_{vap}$ of $CO=6.04\;kj\;mol^{-1}$

Question

$\begin{array}{1 1} (a)\;513.4\;J \\ (b)\;413.4\;J \\ (c)\;313.4\;J \\ (d)\;213.4\;J \end{array} $