Chapter 10.7, Problem 53PP

Interpretation Introduction

Interpretation:

The amount of energy required to vaporize 15.8 g N₂at its boiling point needs to be calculated.

Concept Introduction:

The latent heat of vaporization is defined as the amount of heat required to vaporize 1 g of the substance. The unit is in J/g. For nitrogen gas, the heat of vaporization at its boiling point is 198 J/g.

Thus, the amount of heat required to vaporize 1 g of the nitrogen gas is 198 J.

It is mathematically represented as follows:

  $Q=mL$

Here, m is mass of nitrogen gas and L is latent heat of vaporization.