Figure $1$ shows a pressure$-$volume $($p$-$V$)$ diagram of an Ideal air standard Otto cycle of an internal combustion $($IC$)$ piston$-$cylinder unit. The expansion and compression processes are reversible adiabatic with adiabatic index $1\mathrm{.}4.$The cycle operates with maximum and minimum temperatures of $1300\backslash$deg C and $25\backslash$deg C$.800$ kJ$/$kg heat is transferred to air $($Q$)$ during the constant volume heat addition process. Take specific heat capacity of air at constant volume is $710$ J$/$kgK$.($Assume air is an ideal gas with constant specific heats$).$ Calculate$2\mathrm{.}3.$the temperatures at the end of adiabatic compression $($T$2)$ and adiabatic expansion $($Ta$).$the net work output, thermal efficiency of the cycle.