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Chap10Lec - DRAFT(Chap 10 Page 1 Chapter 10 a closer look...

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DRAFT (Chap 10) Page 1 Chapter 10 a closer look at ideas we’ve already briefly discussed. Thermodynamics tells us IF a reaction will occur spontaneously, but not how fast. (Enthalpy and Entropy are thermodynamic properties.) Kinetics kinetics tell us how fast the reaction will go (the rate of a chemical reaction or the speed at which it occurs). Equilibrium most chemical reactions (and many physical processes) move to a state in which there exists a certain amount of reactants and a certain amount of products. When a system has reached the point where those amounts don’t change, the system is said to have reached equilibrium . A “System” is that portion of the universe that we single out for study. N 2 (g) + 3H 2 (g) 2NH 3 (g) 2NH 3 (g) N 2 (g) + 3H 2 (g) The above equations both show the same system, a system involved in the equilibrium of nitrogen gas and hydrogen gas with ammonia gas.
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