what is vapour pressure?

Asked by sommya naberia | 15th Jun, 2013, 11:31: AM

Expert Answer:

The Vapor pressure  is the pressure exerted by a vapor in the thermodynamic equilibrium with its condensed phases at a given temperature in the closed system. The equilibrium vapor pressure is an indication of a liquid's evaporation rate. It relates to the tendency of particles to escape from the liquid. A substance with a high vapor pressure at normal temperatures is often referred to as volatile.

Answered by  | 17th Jun, 2013, 08:57: AM

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