Which One of the Following Gases is Lighter than Air? - Current Affairs Including General Knowledge

Advertisement Remove all ads
MCQ

Which one of the following gases is lighter than air?

Options

  • Carbon dioxide

  • Chlorine

  • Oxygen

  • Hydrogen

Advertisement Remove all ads

Solution

Hydrogen

Explanation:

Hydrogen (density 0.090 g/L at STP, average molecular mass 2.016 g/mol) and helium (density 0.179 g/L at  STP, average molecular mass 4.003 g/mol) is the most commonly used lift gases. Although helium is twice as heavy as (diatomic) hydrogen, they are both so much lighter than air that this difference only results in hydrogen having 8% more buoyancy than helium.

Concept: General Science (Entrance Exam)
  Is there an error in this question or solution?
Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×