Consider an air$-$standard Diesel cycle. Operating data at principal states in the cycle are given in the table below. The states are numbered as in the figure below.

State $T(K),p(kPa),u(k\frac{J}{k}g),h(k\frac{J}{k}g)$

$,$

$1,380,100,271\mathrm{.}5,380\mathrm{.}6$

$2,957\mathrm{.}9,3025,722\mathrm{.}9,997\mathrm{.}8$

$3,1728,3025,1417,1913$

$4,941\mathrm{.}4,247\mathrm{.}7,708\mathrm{.}9,979\mathrm{.}1$