At 800 K, the equilibrium constant for the reaction A 2 (g) 2A(g) is K c

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At 800 K, the equilibrium constant for the reaction A2(g) ⇌ 2A(g) is Kc = 3.1 x 10-4

(a) Assuming both forward and reverse reactions are elementary reactions, which rate constant do you expect to be larger, kf or kr

(b) If the value of kf = 0.27 s-1, what is the value of kr at 800 K? 

(c) Based on the nature of the reaction, do you expect the forward reaction to be endothermic or exothermic? 

(d) If the temperature is raised to 1000 K, will the reverse rate constant kr increase or decrease? Will the change in kr be larger or smaller than the change in kf ?

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Chemistry The Central Science

ISBN: 978-0134414232

14th Edition

Authors: Theodore Brown, H. LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward, Matthew Stoltzfus

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