4.1- Kinetics

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  • Created by: Naana
  • Created on: 22-01-16 12:58
Define reaction rate
The change in the concentrations of reactants/products per unit time
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What does the rate equation tell us?
It tells us how the rate is affected by the concentration of reactants
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What is k?
The proportionality constant in the rate equation
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Define orders of reaction
The sum of the powers to which the concentration of all the reactants involved in the reaction are raised in the rate equation
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What is the form of a rate equation?
Rate= k [A]^m [B]^n
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What does ‘zero order with respects to A’ mean?
The concentration of A has no effect on the rate of the reaction
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What does ‘first order with respects to A’ mean?
The rate of the reaction is directly proportional to the concentration of A
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What does ‘second order with respects to A’ mean?
The rate of the reaction is proportional to the concentration of A squared
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What is the effect of temperature on rate?
The rate constant (k) increases with a temperature increase. The larger the value of K, the faster the reaction. Small changes in temperature produce large changes in reaction rates. An increase in temperature results in a greater proportion of mole
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Other cards in this set

Card 2

Front

What does the rate equation tell us?

Back

It tells us how the rate is affected by the concentration of reactants

Card 3

Front

What is k?

Back

Preview of the front of card 3

Card 4

Front

Define orders of reaction

Back

Preview of the front of card 4

Card 5

Front

What is the form of a rate equation?

Back

Preview of the front of card 5
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