If a glass of water is spilled on floor, it disappears within no time. Why?

Greater heat absorption

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Greater surface area

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Surface molecules are bigger

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Surface molecules are minute

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Solution

The correct option is B
Greater surface area

Greater surface area results in faster evaporation

Evaporation is surface phenomenon and the greater the surface area, faster the evaporation will take place. The surface molecules absorb energy from surrounding and get into the next phase. If surface area is more then we could see more molecules absorbing latent heat at the same time and convert into vapour.

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Similar questions

Q. Assertion :Physical absorption of molecules takes place on surface only. Reason: In this process, the bonds of the absorbed molecules are broken.

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Q. Assertion :In the warmer liquid, the greater number of molecules are energetic enough to escape the surface during evaporation. Reason: Increase in temperature increases the rate of evaporation.

Water spilled on the floor vanishes after some time even when left unattended. This is because of phenomenon X.The formation of droplets on the outer surface of a glass tumbler containing cold water is due to phenomenon Y. Which one of the following is correct?

Why are concentric circles formed on the surface of a watch glass after water is evaporated from it?

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