Question

Are mole percent and volume percent the same ?

Answer 1

Step 1: Definition:

Mole percent equals the mole fraction of a component multiplied by $100$.

Volume percentage is the ratio of the volume of solute divided by the volume of solution multiplied by $100$.

Step 2: Reason:

For an ideal gas or a mixture of ideal gases, the mole percent and volume percent are evaluated to have the same value.

But for the real gases or mixtures of real gases, the mole percent have not always same value as the volume percent because the volume of a gas is always proportional to the number of moles of the gaseous matter.