Assuming ideal behavior, calculate the work done when $1.6$ mole of water evaporates at $373 \: K$ against the atmospheric pressure of $1\: atm.$

Question

$\begin {array} {1 1} (a)\;-4954.8J & \quad (b)\;4954.8J \\ (c)\;4957.832J & \quad (d)\;-4957.832J \end {array}$