Why does our palm feel cold when we put some acetone or petrol or perfume on it ?

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Why does our palm feel cold when we put some acetone or petrol or perfume on it ?

Option A

Option B

Option C

Option D

Solution

Acetone, petrol, perfume etc., being volatile, evaporate very fast when exposed to larger surfaces. During the process they absorb the required latent heat of vaporization from the palm (if kept on palm). So, the process causes Cooling and the palm feels cool.

Standard 9

Science

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$(a)$ $293 \,K $

$(b)$ $470 \,K$

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easy

Why does our palm feel cold when we put some acetone or petrol or perfume on it ?

Solution

Similar Questions

Convert the following temperatures to the Celsius scale. $(a)$ $293 \,K $ $(b)$ $470 \,K$

Liquids generally have lower density as compared to solids. But you must have observed that ice floats on water. Find out why ?

Why are we able to sip hot tea or milk faster from a saucer rather than a cup ?

Give reasons : We can easily move our hand in air but to do the same through a solid block of wood we need a karate expert.

Arrange the following substances in increasing order of forces of attraction between the particles – water, sugar, oxygen.

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Convert the following temperatures to the Celsius scale.

$(a)$ $293 \,K $

$(b)$ $470 \,K$