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3.6 Further mechanics and thermal physics

Quick questions on Molecular kinetic theory model: pressure, rms speed and molecular energy - AQA A-Level Physics

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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State two assumptions of the molecular kinetic theory model. [2 marks]
What is q2?
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Calculate the mean kinetic energy of a gas molecule at 300 K300 \text{ K} (k=1.38×10−23 J K−1k = 1.38 \times 10^{-23} \text{ J K}^{-1}). [2 marks]
What is q3?
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State how the mean kinetic energy of a molecule depends on the absolute temperature. [1 mark]

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