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Thermal physics (A-level only)

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Question 5

Four gas molecules in a high-temperature plasma have speeds of 1.50w1.50w1.50w, 2.50w2.50w2.50w, 4.50w4.50w4.50w, and 5.50w5.50w5.50w, where www is a reference speed parameter.

What is the root-mean-square speed (crmsc_{\text{rms}}crms​) of these molecules?

A

3.50w

B

3.84w

C

4.11w

D

14.8w

Markscheme

Thermal physics (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Thermal physics (A-level only)

48 exam-style questions on AQA A Level Physics Thermal physics (A-level only), covering Thermal energy transfer (A-level only), Ideal gases (A-level only), and Molecular kinetic theory model (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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