Why does the possibility of escape of light gases increase in the exosphere?
Answer and explanation
Correct answer: Extremely rare collisions and freer particle motion
The exosphere is extremely rarefied, so particles travel long distances without frequent collisions. Light gases such as hydrogen and helium have relatively high thermal speeds, and the weakly bound upper atmosphere allows some particles to move onto escape trajectories. Therefore, option B is correct. Dense rain, tropospheric clouds, and stratospheric dust are not characteristic controls in this region or mechanisms for gas escape.
Frequently asked questions
What is the correct answer to this question?
Extremely rare collisions and freer particle motion
Why is this the correct answer?
The exosphere is extremely rarefied, so particles travel long distances without frequent collisions. Light gases such as hydrogen and helium have relatively high thermal speeds, and the weakly bound upper atmosphere allows some particles to move onto escape trajectories. Therefore, option B is correct. Dense rain, tropospheric clouds, and stratospheric dust are not characteristic controls in this region or mechanisms for gas escape.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
