Class 12 Chemistry simulations · Solutions

Raoult’s law: vapour pressure of a mixture

Mix benzene and toluene and see how the total and partial vapour pressures depend on the mole fraction.

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What to notice

For an ideal solution the total vapour pressure varies linearly between the two pure liquids.

Key relation

p_A = x_A p°_A ; p_total = x_A p°_A + x_B p°_B

Try this

What is the total vapour pressure of an equimolar mixture?

What you can change

• Mole fraction of benzene: 0 to 1

More in Solutions

• Colligative properties: boiling and freezing point
• Henry’s law: gas dissolved in a liquid
• Osmosis and osmotic pressure

See all Class 12 Chemistry simulations or every Physica simulation.