# Question #05480

##### 1 Answer

You're dealing with a phase change, so you need to determine how much heat you need to supply to the ice to get to go from solid at

The equation you'll use looks like this

*latent heat of fusion*, or enthalpy of fusion, which is the change in enthalpy you get when you heat a gram of a substance to change it from solid state to liquid state.

The enthalpy of fusion for ice has a value of **334 J/g**. This means that, if you have *1 gram* of ice at **334 J** of heat in order to get it to liquid at

Since you've got more than one gram of ice, you'll of course need more than 334 J of heat.

Expressed in kJ and rounded to three sig figs, the answer will be

The **+** sign symbolizes that the heat is provided *to the ice*.