In the reaction X + 3Cl₂ → Y, ΔH = −336 kJ (for 3 mol of Cl₂). Find the enthalpy change when 2.8125 mol of Cl₂ react.

University of Ilorin CHM101 2026-exam past question

1. 315 kJ
2. 157.5 kJ
3. −315 kJ
4. −157.5 kJ

Register free to see the answer and step-by-step explanation

More University of Ilorin CHM101 2026-exam past questions

Related questions

• Which of the following can be used as a reference electrode?
• Na₂CO₃(s) → Na₂CO₃(aq), ΔH = x kJ mol⁻¹. ΔH represents:
• What type of bond exists in N₂ and O₂?
• Aluminium sulphate reacts with calcium hydroxide to produce aluminium hydroxide and calcium sulphate: Al₂(SO₄)₃ + Ca(OH)₂ → Al(OH)₃ + CaSO₄…
• When the difference in electronegativity is high, the compound formed is most likely:
• What is the coefficient of CO in the balanced chemical equation: Fe₂O₃ + CO → Fe + CO₂?