(Solved): Calculate the total heat input per unit mass Required information An air-standard cycle with variabl ...

Required information An air-standard cycle with variable specific heats is executed in a closed system and is composed of the following four processes: $1?2v=$ Constant heat addition from 14.7 psia and $80^{?}\mathrm{F}$ in the amount of 300 Btumbm 2-3 $P=$ Constant heat addition to $3450\mathrm{R}$ 3- 4 lsentropic expansion to 14.7 psia 4-1 $P$ - Constant heat rejection to initial state Use data from tables. Calculate the total heat input per unit mass. The total heat input per unit mass is Btu/lbm.