How many calories are absorbed when 150g of ice at O is changed to liquid water at 45C?

Answer 1

q1 = heat to melt ice at zero C to liquid at zero C.

q1 = mass ice x heat fusion.

q2 = heat to warm water at zero C to 45 C.
q2 = mass water x specific heat H2O x (Tfinal-Tinitial).

Total = q1 + q2.