Question

Two substances A and B have boiling points of 18°C and 54°C respectively. In what states do A and B exist at room temperature​

Answer 1

Answer:

Vapour pressure correlates with boiling point inversely. In this case liquid A has a lower boiling point and thus will have higher vapour pressure. Since liquid A has a lower boiling point you can assume that its inter-molecular forces are weaker. Therefore, it is much more likely to become a vapour at lower temperatures and more vapour means more pressure.

Explanation:

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