1. The problem statement, all variables and given/known data Assuming that the snow is -4 degrees celcius and that the water is dumped at +4 degrees celcius, calculate the amount of heat energy required to operate a metromelt for one hour. 2. Relevant equations Q=mct Q=mLf *little f* 3. The attempt at a solution I couldn't see how i would arrive the answer but i knw the Ti=-4 degrees celcius and Tf=4 degrees celcius and melting point is 0 degrees celcius. I want a step-by-step solution.