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The definition of vapour pressure,process and measurement
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Is the pressure exerted by a vapor in thermodynamic equilibrium or it can also be defined as the pressure exhibited by vapor present above a liquid surface When two objects are in thermal dynamic, they are said to have the same temperature. During the process of reaching thermal equilibrium, heat, which is a form of energy, is transferred between objects. As the temperature of a liquid increases the attractive interactions between liquid molecules become less significant in comparison to the entropy of these molecules in the gas phase increasing the vapor pressure thus liquids with strong intermolecular interactions are likely to have smaller vapor pressure, with reserve true It relates to the balance of particles escaping from a liquid or solid in equilibrium with those coexisting vapor phase. A substance with high vapor pressure at normal temperature is referred to as Volatile Factors that influence vapor pressure
Vapor Pressure of a Substance Vapor pressure of any substance increases nonlinearly with temperature. At normal boiling point, vapor pressure equals the ambient atmospheric pressure with an increase in temperature, the vapor pressure becomes greater than atmospheric pressure and causes the liquid to form vapor bubbles Partial Pressure It refers to the vapor pressure that a single component in a mixture contributes to the total pressure Air at sea level, saturated with water vapor at 20°C has a partial pressure of about 23kPaof water ,78kPa of nitogen,21kPa of oxygen and 0.9kPa of argon ,totaling 102.2kPa,making the basis for standard atmosphere 23kPaof water ,78kPa of nitogen,21kPa of oxygen and 0.9kPa of argon ,totaling 102.2kPa,making the basis for standard atmospheric pressure