Two moles of H2 are mixed with 1 mol O2 at 25oC. No observable reaction takes place,

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Two moles of H2 are mixed with 1 mol O2 at 25oC. No observable reaction takes place, although Kc for the reaction to form water is very large at this temperature. When a piece of platinum is added, however, the gases react rapidly. Explain the role of platinum in this reaction. How does it affect the equilibrium composition of the reaction mixture?
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General Chemistry

ISBN: 978-1439043998

9th edition

Authors: Darrell Ebbing, Steven D. Gammon

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