Igcse Model Questions Vol1 2018 Chemistry Question 9
Practice objective / multiple choice question 9 from the 2018 Igcse Model Questions Vol1 Chemistry examination.
When nitrogen monoxide reacts with oxygen according to \(2\,\text{NO} + \text{O}_{2} \rightarrow 2\,\text{NO}_{2}\), the enthalpy change is \(-114\,\text{kJ}\) per mole of NO reacted. Given average bond enthalpies: \(\text{N-O (in NO)} = 607\,\text{kJ mol}^{-1}\), \(\text{O=O} = 498\,\text{kJ mol}^{-1}\), and the unknown average N-O bond enthalpy in \(\text{NO}_{2}\) is \(x\,\text{kJ mol}^{-1}\). Determine the value of \(x\).
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About This Question
This is Igcse Model Questions Vol1 2018 Chemistry Question 9. It is one of the objective questions from the 2018 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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