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Rates of reaction - Coggle Diagram
Rates of reaction
Key Facts + Words
Equilibrium
When the forward and backwards reactions are occurring at the same time + rate
How to calculate the rate of reaction using a tangent
Change in Y axis divided by change in X axis
What is a closed system?
One where nothing can enter or leave the reaction
What is the name of a biological catalyst
An enzyme
What does the state symbol (aq) mean?
In solution
What is drawn on a curve to measure the rate?
A tangent
What is rate of reaction?
chemical reactions and how they occur - is when particles collide with each other with enough activation energy needed to successfully react
Ways of calculating rate of reaction
amount of reactant used (divided) time
How fast reactants are changed in products
What is the rate of reaction directly proportional to
The frequency of successful collisions
Ways to speed up a reaction
Temperature
It increases the frequency of successful collisions
Concentration
It increases the frequency of collisions so increase the frequency of successful collisions
Catalyst
Decreases the amount of activation energy needed in order for a successful collision to occur
Surface area
Increases the amount of successful collisions because more particles are not packed up or layered upon each other resulting in an overall increase in particles colliding
Reaction
exothermic reactions
What is an exothermic reaction?
A reaction which gives energy out to its surroundings
uses of exothermic reactions
Items like handwarmers are a great example same with self heating cans
Endothermic reactions
What is an endothermic reaction?
A reaction which takes energy from its surroundings
uses of endothermic reaction
Sports injury ice packs
Reversible reaction
when the product can re-form reactants