A patient arrives in the emergency room with a burn caused by steam. Calculate the heat that is released when $16\mathrm{.}5$ g of steam at $100.$C hits the skin, condenses, and cools to body temperature of $37\mathrm{.}0$C $.($For water, $540$ cal $(2260$ J $)$ is needed to convert $1$ g of water to vapor at $100$C $.)$