Exothermic And Endothermic Reactions

Where does exothermic reaction transfer energy from and to?
Exothermic reactions transfer energy from the REACTING MOLECULES to the SURROUNDINGS e.g. wood burning
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In exothermic reactions what happens to the surrounding temperature?
Exothermic reactions the temperature of surroundings increase so they get hotter
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Name examples of exothermic reactions?
- Combustion - Oxidation - Neutralisation
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Exothermic= energy profile diagram where are the reactants and products?
In exothermic energy profile diagram reactants at the top and products at the bottom
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In exothermic reactions what is the energy like between reactants and products?
Products have less energy than reactants in exothermic reactions
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Why is there less energy for products than the reactants in exothermic?
In exothermic reactions there is less energy for the products as the energy is being TRANSFERRED from the reaction to surrounding
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On energy profile diagram how do you know the amount of energy being released to surroundings foe exothermic?
Exothermic reaction on the diagram the distance of reactants and products tells us the amount
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What are exothermic reactions useful for?
Exothemric reaction are useful for= - Hand warmers -Self-heating cans e.g. food / drink
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What do endothermic reactions do with energy?
In endothermic reactions they TAKE IN energy from their surroundings
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What happens to the surrounding temperature in endothermic reactions?
In endothermic reactions the temperature of surroundings decreases so they get colder
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Endothermic reactions energy profile diagram where are products + reactant positioned?
Endothermic diagram reactants are at the bottom and the products are at the top
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IN endothermic reactions what happens with energy between products + reactants?
Endothermic products have MORE energy than reactants
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How to find the difference of energy being transferred?
Difference draw dotted line - - - between reactants and products
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What is meant by activation energy?
Activation energy is the minimum amount of energy particles must have in order to react
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AE = when do reaction occur?
Reactions only occur when particles collide with each other with sufficient energy
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Where to see AE on diagram? + How to measure AE on ex/end graph?
Found at peak of slope on diagram + Exothermic and endothermic dotted line between reactant and peak show amount of AE
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Card 2

Front

In exothermic reactions what happens to the surrounding temperature?

Back

Exothermic reactions the temperature of surroundings increase so they get hotter

Card 3

Front

Name examples of exothermic reactions?

Back

Preview of the front of card 3

Card 4

Front

Exothermic= energy profile diagram where are the reactants and products?

Back

Preview of the front of card 4

Card 5

Front

In exothermic reactions what is the energy like between reactants and products?

Back

Preview of the front of card 5
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