At low temperature, how is the water vapour holding capacity of air?
Answer and explanation
Correct answer: Low
At a low temperature, the saturation capacity of air for water vapour decreases; therefore, air can hold less water vapour. When air cools, any vapour exceeding its reduced capacity may condense. ‘Unlimited’ is incorrect because the water-vapour-holding capacity of air is limited and depends on temperature. Exam tip: warmer air can hold more water vapour, whereas cooler air can hold less.
Frequently asked questions
What is the correct answer to this question?
Low
Why is this the correct answer?
At a low temperature, the saturation capacity of air for water vapour decreases; therefore, air can hold less water vapour. When air cools, any vapour exceeding its reduced capacity may condense. ‘Unlimited’ is incorrect because the water-vapour-holding capacity of air is limited and depends on temperature. Exam tip: warmer air can hold more water vapour, whereas cooler air can hold less.
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.
