⇦ | ![]() | ⇨ |
At what temperature will the rms speed of air molecules be double that of NTP?
Options
(a) 519⁰C
(b) 619⁰C
(c) 719⁰C
(d) 819⁰C
Correct Answer:
819⁰C
Explanation:
v(rms) = √(3RT / M)
At T = T₀, v(rms) = √(3RT / M)
But at temperature T, v(rms) = 2 × √(3RT₀ / M)
⇒ √(3RT / M) = 2 √(3RT₀ / M) ⇒ √T = √(4T₀) ⇒ T = 4T₀
T = 4 × 273 K = 1092 K
Therefore, T = 819°C
Related Questions:
- Two tangent galvanometers A and B have coils of radii 8 cm and 16 cm respectively
- The magnetic flux linked with a coil at any instant t is given by ?, find emf
- A parallel plate capacitor of a capacitance 1 pF has seperation between the plates
- The length of second pendulum is 1 m on earth. If mass and diameter
- When a Daniel cell is connected in the secondary circuit of a potentiometer,
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