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Learning objective

(Physics only) State that pressure multiplied by volume is constant for a fixed mass of gas at constant temperature.

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Topic

Particle model and pressure

Subtopic

Pressure in gases (physics only)

Aqa Gcse PhysicsParticle model of matter

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Quick explanation

(Physics only) State that pressure multiplied by volume is constant for a fixed mass of gas at constant temperature

  • This point belongs to Particle model and pressure, especially Pressure in gases (physics only).
  • You need to be able to (Physics only) State that pressure multiplied by volume is constant for a fixed mass of gas at constant temperature.
  • The key ideas to know are constant temperature, fixed mass of gas, and pressure.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

constant temperaturefixed mass of gaspressurevolume

Why it matters

This objective helps connect Pressure in gases (physics only) to exam-style questions, flashcards, and revision notes for Particle model and pressure.

Quick student answer

What should you know about (Physics only) State that pressure multiplied by volume is constant for a fixed mass of gas at constant temperature?

Direct answer

In Physics, this page helps you answer questions about (Physics only) State that pressure multiplied by volume is constant for a fixed mass of gas at constant temperature within Particle model and pressure. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are Pressure and Volume.

Key terms

  • Pressure: In Pressure in gases (physics only), Pressure means in Pressure in gases (physics only), Pressure means the force exerted per unit area by gas particles colliding with the walls of a container. Use this term when explaining (Physics only) State that pressure multiplied by volume is constant for a fixed mass of gas at constant temperature in Particle model and pressure. It is curriculum-specific for AQA GCSE Physics 8463 because it links the word to the approved objective rather than a vague everyday meaning. Use this term when explaining (Physics only) State that pressure multiplied by volume is constant for a fixed mass of gas at constant temperature in Particle model and pressure. It is curriculum-specific for AQA GCSE Physics 8463 because it links the word to the approved objective rather than a vague everyday meaning.
  • Volume: In Pressure in gases (physics only), Volume means in Pressure in gases (physics only), Volume means the three‑dimensional space occupied by a gas, measured in cubic metres. Use this term when explaining (Physics only) State that pressure multiplied by volume is constant for a fixed mass of gas at constant temperature in Particle model and pressure. It is curriculum-specific for AQA GCSE Physics 8463 because it links the word to the approved objective rather than a vague everyday meaning. Use this term when explaining (Physics only) State that pressure multiplied by volume is constant for a fixed mass of gas at constant temperature in Particle model and pressure. It is curriculum-specific for AQA GCSE Physics 8463 because it links the word to the approved objective rather than a vague everyday meaning.

Common trap

Misunderstanding Pressure-Volume Relationship: Remember that for a fixed mass of gas at constant temperature, pressure multiplied by volume is constant; thus, increasing volume decreases pressure.

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