Heat energy is usually measured in either Joules ( J) ,given by the unit and kilojoules (KJ) or in calories ,written shorthand as (cal) , and kilocalories (Kcal) .
Heat energy is usually measured in either Joules ( J) ,given by the unit and kilojoules (KJ) or in calories ,written shorthand as (cal) , and kilocalories (Kcal) .