A $2\mathrm{.}42\mathrm{.}4-$mole sample of a monatomic ideal gas with an initial volume of V$0=5\mathrm{.}75$LV$0=5\mathrm{.}75$L and initial pressure of p$0=4\mathrm{.}5$MPap$0=4\mathrm{.}5$MPa undergoes a complete cycle as follows.

$$ Step $1$: The gas expands isothermally until its volume doubles.

$$ Step $2$: The gas undergoes isochoric cooling as its pressure is reduced to p$0/5$p$0/5.$

$$ Step $3$: The gas is compressed in an isothermal process until its volume is back to volume V$0$V$0,$ and its pressure is $2$p$0/52$p$0/5.$

$$ Step $4$: The gas temperature increases as it goes through an isochoric process which returns it to pressure p$0$p$0$ and volume V$0$V$0.$