The Relation of Pressure to Molecular Energy

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Molecules in a liquid escape when they gain enough energy to overcome attractive forces, leading to vaporization. Boiling occurs when vapor pressure equals atmospheric pressure, allowing all molecules to escape. The relationship between pressure and molecular energy is complex, as pressure is defined as thrust per unit area. Increasing the temperature of a liquid raises its vapor pressure by adding energy, facilitating the escape of molecules. Understanding this interplay between pressure and molecular energy is crucial in thermodynamics.
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when some molecules in a liquid gain enough energy to overcome attractive forces by surrounding molecules, they escape from the liquid surface. but when the vapor pressure becomes equal to atmospheric pressure, boiling is said to take place and all the molecules seem to gain sufficient energy to escape. what is the relation of pressure with 'energy' of the molecules? after all pressure is only thrust per unit area. how can it affect the energy of the molecules?
 
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You increase the vapor pressure by raising the temperature of the liquid (by adding energy to it).
 

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