Chapter 12, Problem 58A

To determine

The heat of vaporization of chloroform

Answer to Problem 58A

  $246750\frac{\text{J}}{\text{Kg}}$

Explanation of Solution

Given:

Mass, $m=\text{40 g = 0}\text{.04 kg}$

Heat absorbed, $\text{Q}=9870\text{J}$

Formula Used:

The heat absorbed or released is

  $\begin{array}{l}Q=m{H}_v\\ H_v=\frac{Q}{m}\end{array}$

Here, $H_v$ is the heat of vaporization.

Calculation:

Substitute the values and solve:

  $H_v=\frac{Q}{m}$

  $H_v=\frac{9870}{0.04}$

Simplifying

  $H_v=246750\frac{\text{J}}{\text{kg}}$

Conclusion:

The heat of vaporization of chloroformis $246750\frac{\text{J}}{\text{Kg}}$.