1g of water at  $100{}^0\text{C}$ is completely converted into steam at  $100{}^0\text{C}$. 1g of steam occupies a  volume of $1650 cc.$ [Neglect the volume of 1g  of water at  $100{}^0\text{C}$). At the pressure of  ${10}^{5}N/m^2$, latent heat of steam is $540\text{\hspace{0.17em}\hspace{0.17em}cal\hspace{0.17em}/\hspace{0.17em}g}$ (1 calorie = 4.2 joule). The increase in the internal energy in joule is