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Order of Reactions
Flash card of definitions Chapter 1 Unit 4
18
Chemistry
12th Grade
10/07/2013

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Term
The rate equation
Definition
Shows the relationshio between the rate of a chemical equation and the concentration of the reactants.
Term
The order of reaction
Definition
With respect to a given reactant is the power of that reactants concentration in the rate equation.
Term
Overall order of reaction
Definition
Is the sum of the powers of the reactant concnetrations in the rate equation.
Term
What is K?
Definition
The rate constant of the reaction
Term
The rate constant
Definition
Is the constant of proportionality in the rate euqation
Term
What happens during a chemcial reaction?
Definition
The concentration of the reactants decreases and the concetration of the products increases.
Term
Rate of reaction
Definition
Change in concentration of the reactants and products per unit time
Term
How do you determine order of reaction?
Definition
Change in concetration (to the power of order of reaction) = change in rate
Term
If the reaction is 1st order
Definition
Concentration doubles rate will double
Directly proportional
Term
If the reaction is 2nd order
Definition
The concentration double the rate will quadruple
Term
What is the rate determining step
Definition
The slowest step in a chemical reaction
Term
If concentration of one of the reactants increase, the rate of reaction will increase. What about K?
Definition
Will not change
Term
Preasure increases, the concentration of reactants will increase and rate of reaction will increase, what will happen to K?
Definition
Will not change
Term
K constant is independant of
Definition
Concentration and pressure
Term
The constant varies with...
Definition
Temperature, and the addition of the catalyst
Term
Temperature increases. K constant?
Definition
Increase
Term
Temperature decreases. K constant?
Definition
Decrease
Term
If concentration or pressue is changed at constant temperature, the K constant will?
Definition
Not change
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