When temperature of an ideal gas is increased from 27⁰C to 227⁰C,

⇦

⇨

When temperature of an ideal gas is increased from 27⁰C to 227⁰C, its r.m.s. speed changes from 400 m/s to Vs. The Vs is

Options

(a) 516 m/s
(b) 450 m/s
(c) 310 m/s
(d) 746 m/s

Correct Answer:

516 m/s

Explanation:

[ʋ(rms)]² ∝ absolute temperature
[ʋ₂ / ʋ₁]² = T₂ / T₁ ⇒ (ʋ₂ / 400) = √[(273+227) / (273+27)] = √(500 / 300) = √(5 / 3)
.·. ʋ₂ = 400 × √(5 / 3) = 400 × √1.67 = 516 m/s

Related Questions:

1. The rest mass of a body is m1. It moves with a velocity of 0.6c, then its relativistic
2. A beam of light of λ=600 nm from a distant source falls on a single slit 1 mm wide
3. A charge of 100 μC has a potential at a distance of 9 m is
4. A body of mass 120 kg and density 600 kg/m³ floats in water.
5. The acceleration due to gravity near the surface of a planet of radius R and density d

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