Flashcards
C2.4 Rates of reaction
Cards in this deck (9)
- 1Two equations for the rate of a chemical reaction1) Rate= Quantity of reactant used up/time
2) Rate= Quantity of product formed/time - 23 experimental ways of measuring the rate of a reaction1. Measure the loss in mass of reactants over time using a mass balance
2. Measure the volume of gas produced over time using a gas syringe
3. Measure the time taken for a solution to become opaque - 3jjff
- 4The collision theory states a chemical reaction can only occur if...1. Reacting particles collide
2. Reacting particles collide with sufficient energy - 55 factors that affect the rate of a chemical reaction1. Temperature
2. Concentration
3. Pressure
4. Surface area
5. Catalyst - 6Increase in tempIncreasing the temperature increases the speed of the reacting particles so they collide more frequently and more energetically.
This increases the rate of reaction. - 7Increase in pressureMore particles in a given volume
Increases the frequency of collisions
so increases the rate of reaction - 8Increase in concentrationMore particles in a given volume
Increases the frequency of collision
so increases the rate of reaction - 9Increase in surface areaIncreases the frequency of collisions
so increases the rate of reaction
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- Flash cards on rates of chemical reactions
- Created by
- tanya-williams46 · Jul 2015
- Updated
- Feb 19, 2016
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