Question

You are cooling down an unknown gas. When the substance reaches a temperature of 34 °C, the gas starts to condense and liquid droplets form. When the substance reaches a temperature of -20 °C, the liquid becomes solid. What is the boiling point of this substance?

Answer 1

The boiling point of the substance is 34°C, as this is the temperature at which the gas begins to condense and form liquid droplets.

Step-by-step explanation:

The boiling point of a substance is the temperature at which it changes from a liquid to a gas. Based on the description, when the unknown gas reaches 34°C, it starts to condense, indicating that this temperature is just below its boiling point. Since the boiling point is the temperature at which the liquid and gas phases are in equilibrium and condensation begins to occur, it can be deduced that the boiling point of the substance is 34°C under the given conditions.