Q$2.$ There are $10kJ$ of energy stored in a AA battery. If you take $1kg$ of water at $20C,$ if this energy is perfectly converted into enthalpy within the water, what is the new temperature of the water. Assume a constant pressure of $25$ bar $($since we don't have a table for $1$ bar$).$ Provide an answer both using the specific heat of water as well as using the tables.

Answer: ${?}^{22\mathrm{.}4C}$