Chapter 3, Problem 100E

Interpretation Introduction

Interpretation:

For the given amount of water kept at a temperature of $25.0°C$ that absorbs $9.4\times {10}^{-2}kWh$ of heat, the final temperature of water is to be determined.

Concept introduction:

The mass of a substance is related to its density as follows:

$m=d\times V$

Here, $m$ is the mass of the substance and $V$ is the volume of the substance.

When a substance absorbs heat $q$, the temperature change for this substance is directly proportional to the heat absorbed and is expressed as follows:

$q=mC\Delta T$

Here, $C$ is the heat capacity of the substance, $\Delta T$ is the temperature change, that is, $T_{\text{f}}-T_{\text{i}}$($T_f$ is the final temperature and $T_{\text{i}}$ is the initial temperature), and $m$ is the mass of the substance.