$1L$ of steam at $\frac{1}{b}ar$ and $100C$ is heated at constant pressure to a final temperature of $382\mathrm{.}4C.$ What is the change in internal energy for this process? Report your answer to four decimal places of precision and with units of $kJ.$

$\backslash$table$[[P=\frac{1}{b}a$

Not sure what $I\text{'}m$ doing wrong.. please help