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April 24, 2014

Homework Help: chemistry

Posted by Amber on Tuesday, June 14, 2011 at 10:37pm.

Use the standard reaction enthalpies given below to determine ΔHrxn for the following reaction:

2 NO(g) + O2(g) → 2 NO2(g), ΔHrxn = ?

Given:
N2(g) + O2(g) → 2 NO(g), ΔHrxn = +183 kJ

1/2 N2(g) + O2(g) → NO2(g), ΔHrxn = +33 kJ

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