Chemistry - Eudiometry Question with Solution | TestHub
During the combustion of hydrocarbons in a eudiometry tube, CO₂ and H₂O are produced. At T < 100°C, H₂O is obtained in the liquid state.
A change in the total volume of gases under isobaric conditions, with H₂O in liquid form, often causes "volume contraction."
If 100 mL of propane is mixed with 700 mL of O₂ and the mixture is ignited at 40°C, any vapors of H₂O should be ignored.
Volume contraction observed is of. mL .
Options:
Answer:
Solution:
Question Explanation: This question asks for the volume contraction for the reaction described.
Concept: Eudiometry.
Solution: The volume contraction is the difference between the initial total volume of gaseous reactants and the final total volume of gaseous products.
1. C₃H₈ + 5O₂ → 3CO₂ + 4H₂O Total volume
L.R.
100 mL 700 mL 0 – 800 mL
100–100 700–500 300 – 500 mL
Final Answer: 300