# Homework Help: Heat/ Energy

1. Apr 9, 2007

### strawberry7

1. The problem statement, all variables and given/known data
Calculate the amount of heat energy required to melt a 10 Kg block of ice at 0 degrees C into liquid water at 0 degrees C. The latent heat of fusion for water is 3.34 * 10to the 5

2. Relevant equations

Q = mc(change in temperature)

3. The attempt at a solution

Q = (10)(3.34 * 10to the 5)(0)
Q= 0

Last edited: Apr 9, 2007
2. Apr 9, 2007

### hage567

That is not the equation for thermal energy involving latent heat of fusion.

3. Apr 9, 2007

### strawberry7

that is exactly what the question said...Actualy therre is a typo I'll edit it

4. Apr 9, 2007

### hage567

The ice is undergoing a phase change here (from ice at 0 degrees to water at 0 degrees). In this situation, there is no change in temperature even though thermal energy is being generated. The equation you are using is not the one you need for this. You need Q=mL, where m is the mass of the ice, and L is the latent heat (of fusion in this case). Look it up.

5. Apr 9, 2007

thankyou!!