2. Explain the reason for the formation of the bubbles when vapour pressure is equal to atmospheric pressure.
Answers
Answer:
As the temperature of a liquid increases, the kinetic energy of its molecules also increases. With any incremental increase in that temperature, the vapor pressure becomes sufficient to overcome atmospheric pressure and lift the liquid to form vapor bubbles inside the bulk of the substance.
Explanation:
Vapor pressure or equilibrium vapor pressure is the pressure of a vapor in thermodynamic equilibrium with its condensed phases in a closed system. All liquids have a tendency to evaporate. Vice versa, all gases have a tendency to condense back to their liquid form.
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 (or a solid). A substance with a high vapor pressure at normal temperatures is often referred to as volatile.
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