Chapter 10.2, Problem 5RQ

Interpretation Introduction

Interpretation: The metals (aluminium, iron and silver) need to be ranked from highest to lowest temperature after heat applied.

Concept introduction: The amount of energy consumed to change the temperature of substance weighing 1 gram by one degree Celsius is termed as specific heat capacity. The specific capacity of water is very high than metals such as iron, mercury etc.

Answer to Problem 5RQ

The rank of metals is,

Silver>Iron>Aluminium

Explanation of Solution

The specific heat capacity of iron, silver and aluminium are $0.45\text{J}\text{/}\text{g}°\text{C}$ , $0.24\text{J}\text{/}\text{g}°\text{C}$ $0.89\text{J}\text{/}\text{g}°\text{C}$ . The smaller the specific heat the greater the change in temperature for a given mass and amount of heat. So, the rank of metals is,

Silver>Iron>Aluminium

Conclusion

Specific heat capacity is related to temperature of substance.