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(b) Explain what happens when a liquid boils. Your answer should explain boiling in terms of the kinetic particle theory and the energy changes involved. [3]



Answer :

Final answer:

Boiling is the transition of a liquid to a vapor state as its particles gain enough energy to escape. The boiling point is when the vapor pressure equals the external pressure.


Explanation:

Boiling is the process in which a liquid changes to a vapor state. As a liquid is heated, the average kinetic energy of its particles increases, allowing more molecules to escape into the vapor phase. The boiling point is when the vapor pressure of the liquid equals the external pressure.


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