# Physics 11 question help?

#### roxxyroxx

1. Homework Statement

A 3.0kg block of ice made in a fridge has an initial temp. of -5.0$$\circ$$C. It
is then moved to a much colder freezer. how much thermal energy is released by the ice as it cools to -40.0$$\circ$$C?
2. Homework Equations
EH = mc$$\Delta$$T
for water, c = 4186 J/kg/$$\circ$$C

3. The Attempt at a Solution
EH = mc$$\Delta$$T
EH = (3.0kg)(4186 J/kg/$$\circ$$C)(-40.0$$\circ$$C - -5.0$$\circ$$C)
= -439530 J
but the answer should be 2.2 x 10^5 J
help?

Last edited:
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#### LowlyPion

Homework Helper
The specific heat of ice is different from that of water.

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