IB Physics B3 Definitions

This page contains our IB Physics definitions for B3. By learning each one of these definitions, you will fully cover the content for IB Physics 'Gas laws'.
Avogadro's number

It is the number of particles (6.022 x 1023) in one mole of a substance

ideal gas

It is a gas that follows the gas laws

molar mass

The mass of one mole of atoms, expressed as M and measured in g/mol

mole

It is the amount of a substance in terms of the number of particles

pressure

It is the force per unit area of container wall

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