$2\mathrm{.}24$ The parameters of the initial state of one kilogram of air in the cycle of an internal combustion engine are $0\mathrm{.}095$ MPa and $65C.$ The compression ratio is $11.$ Compare the values of the thermal efficiency for isobaric and isochoric heat supply in amounts of $800$ kJ $,$ assuming that $k=1\mathrm{.}4.$

Ans: $,{}_{t_p}=55\mathrm{.}7\%,{}_{t_v}=61\mathrm{.}7\%$