Assigned problems _5

Assigned problems _5 - O 2 (fast equilibrium) N 2 O 2 + H 2...

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Chemistry 2080 Spring 2010 Problem Set #5 - due date: Friday March 12th at 2 pm Name:________________ Lab TA Name:__________________ Lab Day/Time:______________________ 1) The rate law for the reaction: 2H 2 (g) + 2NO(g) –––––> N 2 (g) + 2H 2 O(g) is: rate = k[H 2 ][NO] 2 Say which of the following mechanisms can be ruled out on the basis of the observed rate expression, and explain why: Mechanism #1: H 2 + NO ––––––> H 2 O + N (slow) N + NO ––––––> N 2 + O (fast) O + H 2 ––––––> H 2 O (fast) Mechanism #2: H 2 + 2NO ––––> N 2 O + H 2 O (slow) N 2 O + H 2 ––––> N 2 + H 2 O (fast) Mechanism #3: 2NO N 2
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Unformatted text preview: O 2 (fast equilibrium) N 2 O 2 + H 2 ––––> N 2 O + H 2 O (slow) N 2 O + H 2 ––––> N 2 + H 2 O (fast) 2) Given the following equilibrium constants at 427°C: Na 2 O(s) ∏ 2Na(l) + 1 /2 O 2 (g) K 1 = 2 x 10-25 NaO(g) ∏ Na(l) + 1 /2 O 2 (g) K 2 = 2 x 10-5 Na 2 O 2 (s) ∏ 2Na(l) + O 2 (g) K 3 = 5 x 10-29 NaO 2 (s) ∏ Na(l) + O 2 (g) K 4 = 3 x 10-14 determine the values for the equilibrium constants for the following reactions: (a) Na 2 O(s) + 1 /2 O 2 (g) ∏ Na 2 O 2 (s) (b) NaO(g) + Na 2 O(s) ∏ Na 2 O 2 (s) + Na(l) (c) 2NaO(g) ∏ Na 2 O 2 (s)...
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This note was uploaded on 03/13/2010 for the course CHEM 2080 taught by Professor Davis,f during the Spring '07 term at Cornell.

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Assigned problems _5 - O 2 (fast equilibrium) N 2 O 2 + H 2...

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