| ⇦ | 
| ⇨ |
The root mean square speed of oxygen molecule (O₂) at a certain temperature is v. If the temperature is doubled and the oxygen gas dissociates into atomic oxygen, the rms speed would be
Options
(a) v
(b) √2 v
(c) 2v
(d) 2√2 v
Correct Answer:
2v
Explanation:
The rms speed is given by
v(rms) = √(3RT / M)
[v(rms)]o₂ = √(3RT / M) = √(3RT / M) = v
[v(rms)]o = √[3R(2T) / M] = 2 √(3RT / M) = 2v
Related Questions: - The moment of inertia of a thin circular disc about an axis passing through its centre
- The polarising angle of glass is 57⁰. A ray of light which is incident at this angle
- An object is projected with a velocity of 20 m/s making an angle of 45⁰ with horizontal.
- The r.m.s speed of the molecules of a gas in a vessel is 400 m/s
- A monoatomic gas is suddenly compressed to (1/8)th of its initial volume adiabatically.
Topics: Behavior of Perfect Gas and Kinetic Theory
(34)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The moment of inertia of a thin circular disc about an axis passing through its centre
- The polarising angle of glass is 57⁰. A ray of light which is incident at this angle
- An object is projected with a velocity of 20 m/s making an angle of 45⁰ with horizontal.
- The r.m.s speed of the molecules of a gas in a vessel is 400 m/s
- A monoatomic gas is suddenly compressed to (1/8)th of its initial volume adiabatically.
Topics: Behavior of Perfect Gas and Kinetic Theory (34)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply