A-Level
EDEXCEL
Chemistry
October 2025
1 Marks
QP-202510-Chemistry-U2 · Question 9
Question (excerpt):
9 But‑1‑ene burns in oxygen as shown, in a closed system. C4H8(g) + 6O2(g) → 4CO2(g) + 4H2O(l) What volume of gas remains in the system when 20 cm3 of but‑1‑ene burns completely in 200 cm3 of oxygen? …
9 But‑1‑ene burns in oxygen as shown, in a closed system. C4H8(g) + 6O2(g) → 4CO2(g) + 4H2O(l) What volume of gas remains in the system when 20 cm3 of but‑1‑ene burns completely in 200 cm3 of oxygen? …
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