If a tray gets hotter, what happens to the mixture on that tray?

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Multiple Choice

If a tray gets hotter, what happens to the mixture on that tray?

Explanation:
When you apply heat to a liquid, energy goes into the liquid and some of the more volatile components gain enough energy to escape as vapor. That vapor leaves the tray, so there is less liquid remaining on the tray. The result is a lighter mixture on the tray, not a heavier one. The liquid may boil and stay at its boiling point for a while as evaporation continues, but it won’t typically vaporize all at once or cause the mixture to become cooler. So the main idea is that heating causes evaporation, reducing the amount of liquid on the tray and making the mixture lighter.

When you apply heat to a liquid, energy goes into the liquid and some of the more volatile components gain enough energy to escape as vapor. That vapor leaves the tray, so there is less liquid remaining on the tray. The result is a lighter mixture on the tray, not a heavier one. The liquid may boil and stay at its boiling point for a while as evaporation continues, but it won’t typically vaporize all at once or cause the mixture to become cooler. So the main idea is that heating causes evaporation, reducing the amount of liquid on the tray and making the mixture lighter.

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