Question

How much heat energy, in kilojoules, is required to convert 53.0 g of ice at -18.C to water at 25.0 C ?

Answer 1

q1 = heat to raise T of solid ice from -18 to zero.
q1 = mass ice x specific heat solid ice x (Tfinal-Tinitial) (Watch the sign in Tf-Ti)

q2 = heat to convert solid ice at zero C to liquid water at zero C.
q2 = mass ice x heat fusion.

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

Answer 2

34.3

Answer 3

i don't knwo

Answer 4

ayy lmao

Answer 5

15.2