Define vapor pressure. arrange ethanol, water and diethyl ether in the increasing order of their vapour pressures giving suitable reason. does vapour pressure vary with temperature? explain.
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The vapor pressure of a liquid is the equilibrium pressure of a vapor above its liquid (or solid); that is, the pressure of the vapor resulting from evaporation of a liquid (or solid) above a sample of the liquid (or solid) in a closed container.
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