By which process does water vapour cool and change into droplets?
Answer and explanation
Correct answer: Condensation
When water vapour loses heat, its molecules move less freely and the gas changes into tiny liquid-water droplets. This gas-to-liquid phase change is called condensation, so option C is correct. Cloud, fog, and dew formation are familiar examples. Evaporation changes liquid into gas, transpiration releases vapour from plants, and sublimation is a solid-to-gas change.
Frequently asked questions
What is the correct answer to this question?
Condensation
Why is this the correct answer?
When water vapour loses heat, its molecules move less freely and the gas changes into tiny liquid-water droplets. This gas-to-liquid phase change is called condensation, so option C is correct. Cloud, fog, and dew formation are familiar examples. Evaporation changes liquid into gas, transpiration releases vapour from plants, and sublimation is a solid-to-gas change.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bills of Exchange.
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