You place 3.00 mol of NOCl(g) in a reaction vessel. Equilibrium is established with respect to the

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You place 3.00 mol of NOCl(g) in a reaction vessel. Equilibrium is established with respect to the decomposition reaction NOCl(g) ⇋ NO(g) + 1/2Cl2 (g).

a. Derive an expression for KP in terms of the extent of reaction ξ .

b. Simplify your expression for part (a) in the limit that ξ is very small.

c. Calculate ξ and the degree of dissociation of NOCl in the limit that ξ is very small at 375 K and a pressure of 2.00 bar.

d. Solve the expression derived in part (a) using a numerical equation solver for the conditions stated in the previous part. What is the relative error in ξ made using the approximation of part (b)?

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Physical Chemistry

ISBN: 978-0321812001

3rd edition

Authors: Thomas Engel, Philip Reid

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