If 50 grams of water start to boil, then how much heat must be added to completely boil off the water? The latent heat of vaporization is 2,260,000 J/kg
Heat=m*Lv where m is mass and Lv is latent heat of vaporization. So... you will change 50g to kg which is 0.05kg multiply it by 2,260,000J/kg you will get 113000J. :)
