Asked in Premeth Test 10 — GasesModerate

The ratio of the root mean square velocity of H2 at 50 K and that of O2 at 800 K is:

Correct answer: D. 1

  • A. 4
  • B. 2
  • C. 0.449
  • D. 1

Explanation

Step 1: Write the ratio expressionvrms (H2 ,50K) /vrms (O2 ,800K) = √TH2.Mo2/MH2.TO2 Step 2: Substitute values√50 X 0.032 / 0.002 X 800 Step 3: Simplify√1.6/1.6 = 1

Last updated

About Gases

Gas behaviour is explained through the kinetic molecular theory and the relationships among pressure, volume and temperature. Work includes STP, Boyle's and Charles's laws, absolute zero, the ideal gas equation, and the distinction between ideal and real gases, especially the effects of intermolecular forces and molecular volume.

Practise Gases

443 free Gases MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Chemistry questions like this

Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions