Determine the efficiency of a Carnot engine operating between the same temperature extremes. T$=8\mathrm{.}8$ K at $(3\mathrm{.}0$ atm, $2\mathrm{.}0$ L $)($Hint: $\backslash (0<mi>\backslash </mi>$mathrm$\{$e$\}<mn>1</mn><mtext></mtext><mi>\backslash </mi><mi>)</mi><mtext></mtext><mi>)</mi>$