What is the total energy change if 150.0 grams of ice at 0.0 oC are melted, then the water is warmed to 45.0 oC? Is this process endothermic or exothermic? ƒ´Hf = 6.01 kJ/mol(multiple steps)

Answer 1

q1 to melt ice solid to liquid water at zero C. .
q1 = mass ice x heat fusion

q2 to warm liquid water from zero to 45 C.
q21 = mass H2O x specific heat H2O x (T final-T initial)

Total = q1 + q2