1. The problem statement, all variables and given/known data A 250g calorimeter made of a certain metal contains 200g of water at 28'C. When 500g mass of the same metal and at a temperature of 117'C is dropped gently onto the water, an amount of the water boils off whiles the remaining wager rises to 45'C. Calculate the mass of water that boiled off at the boiling point of 100'C. Specific heat capacity of metal=420J/kg K Specific latent heat of vaporisation of water=2.456x10^6J/kg Specific heat capacity of water=4200J/kg K 2. Relevant equations 3. The attempt at a solution I think the question is not making any sense because how can the water boil an still be at 45'C(1.0atm) since boiling occurs at a constant temperature(100'C)?