Chapter U5.5, Problem 2E

Interpretation Introduction

Interpretation:

The reason due to which 1 g of water needs more energy to raise the temperature as compared to 1 g of aluminium needs to be explained.

Concept Introduction :

The specific heat capacity is the amount of energy that should be added to one unit of mass of the substance in order to increase the temperature by one unit.

Answer to Problem 2E

Because water has more specific heat than aluminum.

Explanation of Solution

The specific heat of aluminum is 0.900J/g^oC and the specific heat of water 4.186 joule/g ^oC.

The amount of heat required for temperature change can be calculated as follows:

  $q=mc\Delta T$

So, it directly depends on the specific heat capacity of the substance.

Due to the lower value of specific heat of aluminum than water, water require more energy to raise the temperature.