# How many kilojoules of heat are required to melt 325 grams of ice?

Apr 19, 2016

${H}_{2} O \left(s\right) + \Delta \rightarrow {H}_{2} O \left(l\right)$

Given your quantities approx $110$ $k J$ heat are required.

#### Explanation:

We wish to measure the energy of the given reaction. You have quoted the latent heat of fusion as $340 \cdot J \cdot {g}^{-} 1$.

If $340 \cdot g$ ice are melted then,

$325 \cdot \cancel{g} \times 340 \cdot \cancel{J} \cdot \cancel{{g}^{-} 1} \times {10}^{-} 3 \cdot k J \cdot \cancel{{J}^{-} 1}$ $=$ ??