Physics Question from JEE Main 2023 · 11 April, Shift 1

$1 \, \text{kg}$ of water at $100^\circ C$ is converted into steam at $100^\circ C$ by boiling at atmospheric pressure. The volume of water changes from $1.00 \times 10^{-3} \, \text{m}^3$ as a liquid to $1.671 \, \text{m}^3$ as steam. The change in internal energy of the system during the process will be:

(Given latent heat of vaporisation $= 2257 \, \text{kJ/kg}$, atmospheric pressure $= 1 \times 10^5 \, \text{Pa}$)