C7 Energy Changed Flashcards

1
Q

What is an exothermic reaction

A

A reaction that releases heat

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2
Q

What are 2 examples of an exothermic reaction

A

Neutralisation and combustion

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3
Q

What is an endothermic reaction

A

A reaction that takes in heat

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4
Q

2 examples of an endothermic reaction

A

Electrolysis and first stages of photosynthesis

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5
Q

What is the “law of conversation of energy”

A

1) changes in heat content being measured with a thermometer
2) the overall all amount of energy does not change but conserved

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6
Q

What is activation energy

A

The minimum amount of energy required for a collision to be successful

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7
Q

What is an energy profile

A

Graphical representations of the energy and progress of reaction of a reaction

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8
Q

What is bond breaking and bond making. endothermic or exothermic

A

Bond breaking is endothermic
Bond making is exothermic

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9
Q

Why for an energy profile for an endothermic reaction, is the product higher then the reactant

A

The products have more energy then the reactant

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