Question

The vapour pressure of a liquid depends upon ____

Answer 1

As we know that matters are divided into three types. There are solids, liquids and gas. Air is one of the most important things in our life. In the world, without air nothing is surveyed. For human beings, breathing purpose air is the important thing for inhaling and exhaling. For human respiration, oxygen is used for inhalation of breathing and carbon dioxide is exhaled gas.

Complete answer:
We have to know that the evaporation means the conversion of liquid to gaseous nature of the molecules. It depends on the temperature and pressure of the molecules. When vapour pressure of liquid reaches the atmospheric pressure, it starts boiling, the point is known as boiling point of liquid.
The vapour pressure of the liquid is nothing but the natural pressure of the liquid. If one liquid having low vapour pressure means less volatile and liquid having high vapour pressure means easily volatile. Examples of liquid having low vapour pressure means less volatile is oil and wax and example of liquid having high vapour pressure means easily volatile is petrol and kerosene.
The vapour pressure of a liquid depends on the nature of the liquid compound and temperature.
If the temperature of the liquid increases the vapour pressure of a liquid also increases. If the temperature of the liquid decreases the vapour pressure of a liquid also decreases.
Hence, the temperature of the liquid is directly proportional to the vapour pressure of a liquid.

Note:
We have to know that all the gases are not ideal in nature. Depending on the condition of the gas it behaves as ideal gas. There are three units for measuring the temperature. There are degrees Celsius, kelvin and Fahrenheit. The moles are one of the main units in chemistry. The moles of the molecule depend on the mass of the molecule and molecular mass of the molecule. Chemical reactions are measured by moles only.