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Subjects
Class 12GeographyWater in the AtmosphereHumidity, evaporation, and condensationHardLevel 86

Why can moist air be considered lighter than dry air?

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Answer and explanation

Correct answer: Because water vapour has lower molecular weight than average dry air

Water vapour replaces some heavier molecules of dry air. Exam tip: do not assume moist air is always heavier.

Tags

moist airdensitywater vapour

Frequently asked questions

What is the correct answer to this question?

Because water vapour has lower molecular weight than average dry air

Why is this the correct answer?

Water vapour replaces some heavier molecules of dry air. Exam tip: do not assume moist air is always heavier.

Which subject and chapter does this question cover?

This is a Class 12 Geography question. Chapter: Water in the Atmosphere. Topic: Humidity, evaporation, and condensation.

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