Chem-106_W-2010_Lecture_8s

Chem-106_W-2010_Lecture_8s - Steven Herron 2010...

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Unformatted text preview: Steven Herron 2010 Chemistry-106 Winter 2010 Lecture 8 01/22/2010 Steven Herron 2010 Chemistry-106 Winter 2010 Lecture #8 • 15.5 Calculating Equilibrium Constants – ICE tables • 15.6 Applications of Equilibrium – ICE tables • 15.7 Le Châtelier’s Principle Steven Herron 2010 Chemistry-106 Winter 2010 For the following reaction: CO(g) + 2H 2 (g) CH 3 OH(g) A reaction mixture at 780 o C initially contains: [CO] = 0.500M, [H 2 ] = 1.00M At equilibrium the [CO] concentration is 0.15M. What is the equilibrium constant for the reaction? Steven Herron 2010 Chemistry-106 Winter 2010 For the following reaction: CO(g) + 2H 2 (g) CH 3 OH(g) A reaction mixture at 780 o C initially contains: [CO] = 0.500M, [H 2 ] = 1.00M At equilibrium the [CO] concentration is 0.15M. What is the equilibrium constant for the reaction? [ CO ] [ H 2 ] [ CH 3 OH ] Initial 0.500 1.00 0.00 Change Equilibrium 0.15 Steven Herron 2010 Chemistry-106 Winter 2010 For the following reaction: CO(g) + 2H 2 (g) CH 3 OH(g) A reaction mixture at 780 o C initially contains: [CO] = 0.500M, [H 2 ] = 1.00M At equilibrium the [CO] concentration is 0.15M. What is the equilibrium constant for the reaction? [ CO ] [ H 2 ] [ CH 3 OH ] Initial 0.500 1.00 0.00 Change-0.35 Equilibrium 0.15 Steven Herron 2010 Chemistry-106 Winter 2010 For the following reaction: CO(g) + 2H 2 (g) CH 3 OH(g) A reaction mixture at 780 o C initially contains: [CO] = 0.500M, [H 2 ] = 1.00M At equilibrium the [CO] concentration is 0.15M. What is the equilibrium constant for the reaction? [ CO ] [ H 2 ] [ CH 3 OH ] Initial 0.500 1.00 0.00 Change-0.35 2(-0.35) +0.35 Equilibrium 0.15 Steven Herron 2010 Chemistry-106 Winter 2010 For the following reaction: CO(g) + 2H 2 (g) CH 3 OH(g) A reaction mixture at 780 o C initially contains: [CO] = 0.500M, [H 2 ] = 1.00M At equilibrium the [CO] concentration is 0.15M. What is the equilibrium constant for the reaction? Kc = [CH 3 OH] / [CO] [H 2 ] 2 = (0.35) / (0.15) (0.30) 2 Kc = 25.9 [ CO ] [ H 2 ] [ CH 3 OH ] Initial 0.500 1.00 0.00 Change-0.35 2(-0.35) +0.35 Equilibrium 0.15 0.30 0.35 Steven Herron 2010 Chemistry-106 Winter 2010 Steven Herron 2010 Chemistry-106 Winter 2010 For the following reaction: 2CH 4 (g) C 2 H 2 (g) + 3H 2 (g) A reaction mixture at 1700 o C initially contains: [CH 4 ] = 0.115M At equilibrium the [C 2 H 2 ] concentration is 0.035M. What is the equilibrium constant for the reaction? A) 1350 B) 50 C) 0.02 D) 0.001 E) 0.0007 Steven Herron 2010 Chemistry-106 Winter 2010 For the following reaction: 2CH 4 (g) C 2 H 2 (g) + 3H 2 (g) A reaction mixture at 1700 o C initially contains: [CH 4 ] = 0.115M At equilibrium the [C 2 H 2 ] concentration is 0.035M. What is the equilibrium constant for the reaction?...
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This note was uploaded on 11/12/2010 for the course CHEM 106 taught by Professor Herron,s during the Winter '08 term at BYU.

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Chem-106_W-2010_Lecture_8s - Steven Herron 2010...

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