Question

Write a note on expansion of gases.

Answer 1

In order to solve this question, we are going to first start by defining what the expansion of a gas means and basically how that process is carried out and what changes that brings inside the gas. After that an example and the mathematical equation are given for the expansion of the gas.

Complete step-by-step answer:
The expansion of a gas occurs whenever it is heated. Heating a gas increases the kinetic energy of the particles, causing the gas to expand. Increasing the temperature of the gas without increasing the volume that is available to accommodate the expanding gas means that the pressure builds up inside the container and may cause it to explode.
For example, when a balloon is inflated in a cool space, the inflation is partial while on heating, it comes to full size. In thermal expansion, which is the increase in body dimension due to the increase in the temperature.
Gases expand more at ordinary temperature than solid and liquid. The gas expansion coefficient depends upon temperature. For an ideal gas, the volume expansion coefficient can be found from the ideal gas equation at constant pressure.
We can write the equation
$P \times V = \mu \times R \times T$

Note: When dealing with the expansion of gases, it is important to be aware that both temperature and pressure determine the change in volume of the substance. Increasing the temperature leads to increase in the volume of the gas while the increase in the pressure leads to decrease in volume.