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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
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The ultimate individual unit of magnetism in any magnet is called
- A satellite of mass m revolves around the earth of radius R at a height x from
- The slope of the graph showing the variation of potential difference V on X-axis
- The internal energy change in a system that has absorbed 2 kcals of heat
- The work of 146 kJ is performed in order to compress one kilo mole fo gas 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
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