Chapter 13, Problem 2STP

Interpretation Introduction

Interpretation: It is to be determined whether chloroform can be heated at $90\text{ °C}$ in an open container or not.

Concept introduction:

The temperature at which a liquid's vapor pressure equals the pressure around it and the liquid transform into a vapor is known as the boiling point of a substance.

Answer to Problem 2STP

Chloroform cannot be heated in an open container to $90\text{ °C}$

Explanation of Solution

The graph is plotted between vapor pressure and temperature. The temperature at which the vapor pressure becomes equal to the atmospheric pressure (1 atm or 101.3 kPa) is the boiling point of that substance.

For chloroform the normal boiling is $60\text{ °C}$ . So, chloroform will evaporate at $60\text{ °C}$ .

Thus, chloroform cannot be heated in an open container to $90\text{ °C}$ .