Higher Tier: Gas Laws and Calculations
Part of Gas Pressure & Temperature — GCSE Physics
This higher tier covers Higher Tier: Gas Laws and Calculations within Gas Pressure & Temperature for GCSE Physics. Revise Gas Pressure & Temperature in Particle Model for GCSE Physics with 13 exam-style questions and 30 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 9 of 12 in this topic. This section is most useful once the core foundation idea is secure, because it adds the detail that pushes answers higher.
Topic position
Section 9 of 12
Practice
13 questions
Recall
30 flashcards
🎓 Higher Tier: Gas Laws and Calculations
For a fixed mass of gas at constant volume, the pressure law states:
p₁/T₁ = p₂/T₂
(where T is in Kelvin)
Worked example: A gas at 300 K has pressure 100,000 Pa. What is the pressure at 600 K (constant volume)?
p₂ = p₁ × T₂/T₁ = 100,000 × 600/300 = 200,000 Pa
Pressure and volume (constant temperature):
p₁V₁ = p₂V₂
Compress a gas (reduce V) → particles hit walls more often → pressure increases. Used in syringes, bicycle pumps, and car engines.