Chapter 11, Problem 36E

Interpretation Introduction

Interpretation:

The amount of heat that is released while freezing $25.0\text{g}$ of water at $0\text{°C}$ is to be calculated.

Concept introduction:

When a substance change its state from solid to liquid, then the amount of heat needed to melt $\text{1}\text{.00}\text{g}$ of substance is known as heat of fusion $\left({\text{H}}_{\text{fusion}}\right)$.

The heat of fusion for water is $80.0\text{cal}/\text{g}$.

When the state of water changes from liquid to solid, the same amount of heat energy is released and this heat change is known as heat of solidification $\left({\text{H}}_{\text{solid}}\right)$.