Lemonade is prepared by mixing lemon juice and sugar in water. You wish to add ice to cool it. Should you add ice to the lemonade before or after dissolving sugar ? In which case would it be possible to dissolve more sugar ? [3 marks]

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Solution

The maximum amount of sugar that can be dissolved in a given quantity of water increases with the increase in the temperature. [1 mark]

When ice is added to the lemonade, its temperature decreases. So, less sugar can be dissolved in it. [1 mark]

Therefore, in order to dissolve more sugar in the lemonade, we should add ice only after dissolving the sugar. [1 mark]

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