How much heat energy, in kilojoules, is required to convert 37.0g of ice at −18.0 ∘C to water at 25.0 ∘C ?

Answer 1

q1 = heat needed to raise T of ice from -18 C to zero C.
q1 = mass ice x specific heat ice x (Tfinal-Tinitial)

q2 = heat needed to melt ice at zero C to liquid H2O at zero C.
q2 = mass ice x heat fusion

q3 = heat needed to raise T liquid H2O from zero C to 25 C.
q3 = mass water x specific heat water x (Tfinal-Tinitial)

Total heat is sum of q1, q2, q3.

Answer 2

0.001