A liquid has a constant heat capacity of $C_p=2\mathrm{.}2k\frac{J}{k}g*K.$ Initially, a vessel contains $0\mathrm{.}8kg$ of this liquid at $277K.$ If the enthalpy of the liquid is increased by $7$

$kJ,$ what is the final temperature of the liquid? Assume the process occurs at constant pressure.