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. Slope of PV and V for an isobaric process will be
2. A n-p-n transistor is connected in common emitter configuration in a given amplifier.
3. In a P-N junction
4. A beam of light contains two wavelengths 6500Å and 5200Å.
5. ₉₂U²³⁴ has 92 protons and 238 nucleons. It decays by emitting an alpha particle

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