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Subjects
Class 12GeographyWater in the AtmosphereHumidity, evaporation, and condensationExpertLevel 87

Which statement is correct while understanding the effect of water vapour on air density?

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Answer and explanation

Correct answer: At the same temperature and pressure, vapour can replace heavier molecules of dry air

Water vapour has lower molecular weight than average dry air. Exam tip: avoid the density misconception.

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moist airdensitymolecular weight

Frequently asked questions

What is the correct answer to this question?

At the same temperature and pressure, vapour can replace heavier molecules of dry air

Why is this the correct answer?

Water vapour has lower molecular weight than average dry air. Exam tip: avoid the density misconception.

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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