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Chemistry › Chemical Principles

Reaction rate and chemical equilibriumMedium frequency

10-question practice

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Question 1 of 7
1.0 mol1.0\ \mathrm{mol} of PCl5(g)\mathrm{PCl_5(g)} is placed in a 2.0 L2.0\ \mathrm{L} sealed container and reacts: PCl5(g)⇌PCl3(g)+Cl2(g)\mathrm{PCl_5(g)\rightleftharpoons PCl_3(g)+Cl_2(g)}. After 5 min5\ \mathrm{min}, 0.40 mol0.40\ \mathrm{mol} of Cl2\mathrm{Cl_2} has formed. What is the average rate of reaction in terms of PCl5\mathrm{PCl_5} over 0∼5 min0\sim5\ \mathrm{min}? ( ).
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