Are you a chemistry student? Visit A-Level Chemistry to download comprehensive revision materials - for UK or international students!

Charles’s Law

Definition It is a quantitative relationship between temperature and volume of a gas. It was given by French scientist J. Charles in 1787. According to this law, the volume of the given mass of a gas is directly proportional to the absolute temperature when the pressure is kept constant.                                       V    α   T                     (when pressure … Read more

Ideal Gas Law (pV = nRT)

Ideal Gas Law Definition The ideal gases obey the ideal gas law perfectly. This law states that: the volume of a given amount of gas is directly proportional to the number on moles of gas, directly proportional to the temperature and inversely proportional to the pressure. i.e. pV = nRT. The gas laws The volume … Read more