Sugar dissolves faster in hot water than cold water. Ii. Rate of evaporation of an aqueous solution decreases with increase in humidity. Iii. Solids are rigid.
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1) because when water is heated sugar molecules get energy (external) which helps them to dissociate faster and thus they dissolve at faster rate
2)because water droplets(humidity) is already there in air.evaporation rate will be more in air less humid
3) solids are rigid because the molecules are closely packed and strong intermolecular force
2)because water droplets(humidity) is already there in air.evaporation rate will be more in air less humid
3) solids are rigid because the molecules are closely packed and strong intermolecular force
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