Water boils at 100°C while ethanol boils at 78°C.When distilling a mixture of ethanol and water, which liquid would collect in the condenser first? Explain your answer.
Question
Water boils at 100°C while ethanol boils at 78°C.When distilling a mixture of ethanol and water, which liquid would collect in the condenser first? Explain your answer.
Solution
The liquid that would collect in the condenser first would be ethanol. This is because ethanol has a lower boiling point than water.
Here's a step-by-step explanation:
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When you heat a mixture of water and ethanol, both substances start to get hot, but they do not boil at the same temperature.
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Ethanol boils at a lower temperature (78°C) compared to water (100°C). This means that ethanol will start to evaporate before water when the temperature reaches 78°C.
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As the ethanol evaporates, it will travel up into the condenser. The condenser is designed to cool down the vapor, turning it back into a liquid form.
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Therefore, the ethanol will be the first to condense into a liquid and be collected.
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The water will start to evaporate and condense once the temperature of the mixture reaches 100°C, which is after the ethanol has already been distilled.
So, in a distillation process of a mixture of water and ethanol, ethanol would be the first to be collected in the condenser due to its lower boiling point.
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