How Many Moles Of Water Would Be Evaporated By 1990.0 Kj Of Heat Energy?

The whole question is this:
During a strenuous workout, an athlete generates 1990.0 kJ of heat energy. What mass of water would have to evaporate from the athlete’s skin to dissipate this much heat?

Tagged as: 1990.0, Energy, Evaporated, Heat, Many, Moles, Water, Would