Chapter 3, Problem 5STP

Interpretation Introduction

Interpretation : The substance that contracts when it freezes to be identified.

Concept Introduction : The connectivity between mass and volume is density. The formula of density is given as:

  $\text{Density =}\frac{\text{mass}}{\text{volume}}$

Answer to Problem 5STP

Option (B)

Explanation of Solution

Reason for correct option:

The connectivity between mass and volume is density. The formula of density is given as:

  $\text{Density =}\frac{\text{mass}}{\text{volume}}$

Most compounds expand in volume as the temperature rises.

The mass stays constant.

As the volume changes, the density also changes during rising in temperature.

Since the density and volume are inversely proportional, volume increases while the density decreases as the temperature increases.

The density varies inversely with temperature.

In the freezing state, the temperature decreases whereas the density increases.

Conclusion

Reasons for incorrect options:

The density and the temperature are inversely proportional.

So, options (A), (C), and (D) are irrelevant options.