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5 Newtonian world and astrophysics

Quick questions on Ideal gases and kinetic theory: the gas laws, pressure and rms speed - OCR A-Level Physics A

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 kinetic theory of an ideal gas. [2 marks]
What is q2?
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A gas of 0.50 mol0.50\ \text{mol} occupies 0.012 m30.012\ \text{m}^3 at 300 K300\ \text{K}. Find its pressure. Take R=8.31 J mol−1 K−1R = 8.31\ \text{J mol}^{-1}\ \text{K}^{-1}.
What is q3?
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State how the mean kinetic energy of a gas molecule depends on temperature. [1 mark]

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