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Kc starter wc 05.11.12 The reaction between nitrogen and hydrogen is given below:

Kc starter wc 05.11.12 The reaction between nitrogen and hydrogen is given below: N 2 + 3H 2 = 2NH 3 1.0 moles of nitrogen were reacted with 3.0 moles of hydrogen in a 1.0 dm 3 vessel at 450⁰C. At equilibrium, 0.80 moles of ammonia formed. Write an expression for Kc

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Kc starter wc 05.11.12 The reaction between nitrogen and hydrogen is given below:

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  1. Kc starter wc 05.11.12 The reaction between nitrogen and hydrogen is given below: N2 + 3H2 = 2NH3 1.0 moles of nitrogen were reacted with 3.0 moles of hydrogen in a 1.0 dm3 vessel at 450⁰C. At equilibrium, 0.80 moles of ammonia formed. Write an expression for Kc Calculate a value for Kc at 450⁰C, including units. Give your answer to an appropriate number of sig fig

  2. Answers Kc = [NH3]2/[N2][H2]3 N2+ 3H2 = 2NH3 Moles at start: 1.0 3.0 0.0 Moles at eqm 0.60 1.8 0.80 Kc = (0.80)2/(0.60)x(1.8)3 Kc = 0.18 mol-2dm6 (2sf)

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