why it is necessary to mention pressure while talking about the boiling point of a liquid
Answers
Answer:
When atmospheric pressure increases, the boiling point becomes higher, and when atmospheric pressure decreases (as it does when elevation increases), the boiling point becomes lower. Pressure on the surface of water tends to keep the water molecules contained.
Explanation:
As the pressure applied to the liquid surface is increased, the energy needed for the liquid molecules to expand to gas phase also increases. Hence, a higher temperature is required to change liquid to gas phase. So, boiling point of liquid rises on increasing pressure.
Answer:
Pressure Affects the Boiling Point
When atmospheric pressure increases, the boiling point becomes higher, and when atmospheric pressure decreases (as it does when elevation increases), the boiling point becomes lower. ... As pressure increases, water molecules need additional heat to gain the speed necessary for escape.
Explanation:
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