This key facts covers Key Facts to Memorise within Gas Volume for GCSE Chemistry. Topic 19: Gas Volume It is section 6 of 11 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 6 of 11
Practice
20 questions
Recall
20 flashcards
📌 Key Facts to Memorise
- Molar gas volume at RTP = 24 dm³/mol (or 24,000 cm³/mol)
- RTP = Room Temperature and Pressure (20°C, 1 atm)
- Volume = moles × 24 (when volume in dm³)
- Moles = volume ÷ 24
- Applies to ALL gases — H₂, O₂, CO₂, N₂, etc.
- 1 dm³ = 1000 cm³ — convert if needed!
- Combine with n = m ÷ Mr for mass-to-volume calculations