Chemistry - Thermochemistry Question with Solution | TestHub

$17.0 \mathrm{g}$of${\mathrm{NH}}_3$completely vapourises at$-33.42 °\mathrm{C}$and$1$bar pressure and the enthalpy change in the process is$23.4 \mathrm{kJ}{ \mathrm{mol}}^{-1}$. The enthalpy change for the vapourisation of$85 \mathrm{g}$of${\mathrm{NH}}_3$under the same conditions is$\mathrm{kJ}$.