A fluid system undergoes a non$-$flow reversible process following the pressure volume relation of $P=\frac{6}{V}+1\mathrm{.}6$ where $P=$ pressure in bar and $V=$ volume in $m^3.$ During the process volume changes from $0\mathrm{.}2m^3$ to $0\mathrm{.}05m^3$ and system rejects $50$ kJ of heat.

$110.$ Change in internal energy of the system is $($in kJ $)$

$111.$ Change in enthalpy of the system is $($in kJ$)$