Edexcel International GCSE Physics
Edexcel International GCSE Physics Ideal Gas Molecules Exam Questions
Free Edexcel International GCSE Physics exam questions on Ideal Gas Molecules, with mark schemes. Covers Brownian motion, gas pressure, absolute zero and the gas laws.
Ideal Gas Molecules exam questions
These packs of real past exam questions cover the whole of Section 5: Solids, Liquids and Gases, including Ideal Gas Molecules. Work through every question on this sub-topic, then mark your answers against the mark scheme.
StemUp mark scheme flashcards
Edexcel IGCSE Physics 4PH1 Flashcards (Anki & Quizlet)
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Use them on Anki or Quizlet, then test yourself with the questions on this page.
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About Edexcel International GCSE Physics Ideal Gas Molecules
This sub-topic covers gases.
What you need to know
- Molecular motion Brownian motion and pressure.
- Kelvin Absolute zero at −273 °C.
- Gas laws p₁V₁ = p₂V₂ and p₁/T₁ = p₂/T₂.
Common mistakes in Ideal Gas Molecules
- Using Celsius in gas laws.
- Forgetting temperature must be constant for Boyle.
Try two Ideal Gas Molecules exam-style questions
1. Convert 27 °C to kelvin. (1 mark)
Show the mark scheme answer
300 K.
2. Explain why gas pressure rises with temperature. (2 marks)
Show the mark scheme answer
Molecules move faster (1), hitting walls harder and more often (1).
Ideal Gas Molecules FAQs
What does this cover?
Gas behaviour and the gas laws.
What is absolute zero?
The lowest possible temperature, 0 K.
Revise this topic with flashcards: Edexcel IGCSE Physics 4PH1 Flashcards, with mark scheme answers for Anki and Quizlet.
