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Equilibrium
What is equilibrium?
It may be defined as a state in all changes or reactions carried in a closed vessel, where the measurable properties of the system such as colour, density, vapour pressure, concentration, temperature etc. do not show any further noticeable change.
Give two examples of physical equilibrium.
(i) Evaporation of water in a closed vessel.
(ii) Dissolution of a gas in a liquid under pressure in a closed vessel.
What kind of molecules in a liquid can evaporate?
The molecules having high kinetic energies can evaporate.
Name the factors on which vapour pressure of any liquid depends.
Factor at which vapours pressure of a liquid depends on:(i) Temperature (ii) Nature of liquid.
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