Question

What mass of steam at 100 C must be mixed with 150 gram of ice at its melting point, in a thermally insulated container, to produce liquid water at 50 C? Heat of fusion of water at its normal freezing or melting temperature = 333 kJ/kg Heat of vaporization (or steam) = 2256 kJ/kg Specific heat of water = 4180 J/kg K