TAILIEUCHUNG - Chapter 15: Chemical Equilibrium

Invite you to consult the lecture content "Chapter 15: Chemical Equilibrium" below. Contents of lectures introduce to you the content: The concept of equilibrium, the equilibrium constant, le châtelier’s principle. Hopefully document content to meet the needs of learning, work effectively. | Copyright 1999, PRENTICE HALL Chapter 15 Chemical Equilibrium Chapter 15 David P. White University of North Carolina, Wilmington 1 1 1 1 Copyright 1999, PRENTICE HALL Chapter 15 The Concept of Equilibrium Consider colorless frozen N2O4. At room temperature, it decomposes to brown NO2: N2O4(g) 2NO2(g). At some time, the color stops changing and we have a mixture of N2O4 and NO2. Chemical equilibrium is the point at which the concentrations of all species are constant. Using the collision model: as the amount of NO2 builds up, there is a chance that two NO2 molecules will collide to form NO2. At the beginning of the reaction, there is no NO2 so the reverse reaction (2NO2(g) N2O4(g)) does not occur. Copyright 1999, PRENTICE HALL Chapter 15 The Concept of Equilibrium Copyright 1999, PRENTICE HALL Chapter 15 The Concept of Equilibrium The point at which the rate of decomposition: N2O4(g) 2NO2(g) equals the rate of dimerization: 2NO2(g) N2O4(g). is dynamic .

• Hoá học
• Chemical Equilibrium
• Concept of equilibrium
• Equilibrium constant
• Heterogeneous equilibria
• Effect of temperature changes
• Equilibrium constants
• Chemical process control
• Equilibrium constants