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Name the liquid with higher vapour press...

Name the liquid with higher vapour pressure in the following pairs :
(a) Alcohol, glycerin , (b) Petrol, kerosene, (c ) mercury, water.

Text Solution

AI Generated Solution

To determine which liquid has a higher vapor pressure in the given pairs, we need to understand the relationship between vapor pressure and intermolecular forces. Vapor pressure is inversely proportional to the strength of intermolecular forces; that is, the weaker the intermolecular forces, the higher the vapor pressure. Let's analyze each pair step by step: ### Step 1: Compare Alcohol and Glycerin - **Intermolecular Forces**: Alcohols generally have weaker intermolecular forces compared to glycerin, which has strong hydrogen bonding due to its multiple hydroxyl (-OH) groups. - **Conclusion**: Since alcohol has weaker intermolecular forces, it will have a higher vapor pressure than glycerin. ...
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