posted by Cha-Ching .
How much heat energy is needed to convert 125.0g of ice from -27.0ºC to a liquid at 50.0ºC?
q1 = heat need to raise T from -27 C to zero C.
q1 = mass ice x specific heat ice x (Tfinal-Tinitial).
q2 = neat to convert ice at zero C to liquid water at zero C.
q2 = mass ice x heat fusion.
q3 = heat to raise T of liquid water from zero C to 50 C
q3 = mass x specific heat x (Tfinal-Tinitial)
Total Q = q1 + q2 + q3