Chapter 17 - Rates of Reaction

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Last updated 5:34 PM on 9/7/26
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11 Terms

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Rate of reaction

the change in concentration per unit time of any one reactant or product, how quickly chemical changes occur

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Speed

rate of change of distance with time

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Chemical reactions how do they work

A reactant is being used up at a rate as a product is being formed

<p>A reactant is being used up at a rate as a product is being formed</p>
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Reactants role in the chemical reaction

How fast the reactants are being used up

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Products role in the chemical reaction

How fast the products are being formed

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What is the average rate of reaction formula

Quantity of substance over Time taken

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The average rate of reaction

is the overall change in the amount of reactant or product over a period of time. It tells you how fast a reaction is taking place as an average between two points in time

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The instantaneous rate of reaction

is the rate of reaction at any one particular time during the reaction

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The initial rate of reaction

is the rate of reaction at the beginning of the reaction

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Factors affecting rates of reaction

Nature of reactants, Surface Area, Concentration, Temperature, Catalysts, Pressure for gaseous reactions

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Nature of reactants

Covalent compounds are typically slower to react when compared to ionic compounds, this is because covalent bonds must be broken before they can react, whereas ions are dissiociated already and can react immediately.