Gce Model Questions Vol1 2019 Chemistry Question 34
Practice objective / multiple choice question 34 from the 2019 Gce Model Questions Vol1 Chemistry examination.
A 2‑mol sample of a C₅H₁₂ isomer is combusted completely in excess O₂. The combustion produces 224 L of CO₂ measured at STP and releases 6.80×10⁴ kJ of heat. The standard enthalpies of combustion are: n‑pentane \(-3500\) kJ mol⁻¹, isopentane \(-3400\) kJ mol⁻¹ and neopentane \(-3300\) kJ mol⁻¹. Identify which isomer was used.
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About This Question
This is Gce Model Questions Vol1 2019 Chemistry Question 34. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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