An internal combustion engine is to be evaluated on the basis of an air$-$standard Otto cycle. The pressure and temperature at the intake are $14\mathrm{.}7$ psia and $600\backslash$deg R $(101\mathrm{.}3$ kPa and $330\backslash$deg K$),$ respectively. The maximum pressure and temperature in the cycle are $340$ psia and $2610\backslash$deg R $(2\mathrm{.}3$ MPa and $1450\backslash$deg K$),$ respectively. Consider air to be an ideal gas. What are the: $($a$)$ pressure at the end of the compression stroke $($b$)$ temperature at the end of the compression stroke $($c$)$ cycle efficiency?