Changes of state and latent heat

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Homework Statement

A 0.2 kg block of ice at -15*C is placed into a pan on a stove, heated to a liquid, and then to vapour with a final temperature of 115*C. Calculate the total amount of heat required for this process.

Homework Equations

Eh = mc(t2 - t1)
Lf (or Lv) = Eh / m

The Attempt at a Solution

Etotal = Emelting + Evapourization

Emelting = mct
= (0.2kg)(4.2x10^3)(0+15*C)
= 12 600 J

Evapourization = mct
= (0.2kg)(4.2x10^3)(115-0*C)
= 96 600 J

Etotal = 12600 + 96 600J
= 109 200 J or 1.1 x 10^5

What am i doing wrong? The answer is 6.2 x 10^5 J.

 

[Mapes]

1) You need to use the correct specific heat capacity for ice, water, and steam.
2) You need to incorporate the latent heat of the phase transformations that occur at 0°C and 100°C.