Give the names of any two methods which are used to determine the vapour pressure.

Explanation

To determine the vapor pressure of a solution, two commonly used methods are:

1. **Boiling Point Method**: This method involves measuring the boiling point of the solution. The vapor pressure can be determined by observing the temperature at which the solution boils, as it relates to the vapor pressure of the liquid.

2. **Transpiration Method**: This method measures the vapor pressure by observing the rate of evaporation of a liquid through a porous medium. The amount of liquid that evaporates over a certain period can be correlated to its vapor pressure.

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