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reactions/equlibrium
Chem
| Question | Answer |
|---|---|
| reaction rate | the change in concentration of a reactant or product per unit time, expressed as mol/(ls) |
| Collision theory | atoms, ions, and molecules must collide with each other in order to react. |
| activated complex/transition state | an intermediate particle made up of the joined reactants |
| activation energy | minimum amount of energy that colliding particles must have in order to form an activated complex |
| catalyst/enzyme | a substance that increases the rate of a chemical reaction without itself being consumed in the reaction |
| inhibitor | a substance that slows down, or inhibits, reaction rates. |
| rate law | the equation that expresses the mathematical relationship between the rate of a chemical reaction and the concentration of reactants |
| specific rate constant | numerical value that relates reaction rate and concentration of reactants at a given temp. |
| reaction order | the reaction order for a reactant defines how the rate is affected by the concentration of that reaction. |
| complex reaction | a certain series of steps mus occur with correct fit and in an exact sequence in order to yield trhe reaction products |
| reaction mechanism | the SERIES OF STEPS that must occur with correct fit and in an exact sequence in order to yield trhe reaction products |
| intermediate | an atom,ion or molecule prduced in one step of a reaction adn consumed in a later step |
| rate-determining step | determines how fast the reaction forms products, no matter how fast the other steps are |
| chemical kinetics | the study of the sped at which chemical and physical processes take place |
| rate law | a mathematical expression showing how a change in the concentration affects the rate of the reaction |
| reversible reation | one that can occur in both the FORWARD and the REVERSE directions |
| chemical equlibrium | a state in which the forward an dreverse reactions balance each otehr because they take place at equal rates |
| law of chemical equlibrium | at a given temp, a chem system may reach a state in which a particular ration of reactant and product concentrations has a constant value |
| equilibrium constant | the numerical value of the ration product concentrations to reactant concentrations, with each concentration raised to the power corresponding to its coefficient in the balanced equation |
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