CBSE Class 11-science Answered

The description of experiment is not very clear.

The relationship is given between pressure and volume, PV²= constant.

The initial state of gas is given in terms of temp. T and volume V.

It is required to find at what temperature does the gas expand to twice the original volume?

Please clarify your question. 

The ideal gas law neglects both molecular size and intermolecular attractions.

When density of a gas is low (larger volumes at lower pressures), the average distance between nearby molecules increases compared to molecular size.

When a gas is at high temperature the molecules are farther apart. The importance of intermolecular attractions decreases.

Therefore, two conditions for a gas to follow the ideal gas law: high temperatures and low pressures.