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GCSE Chemsitry > factors affecting rates of reaction > Flashcards

factors affecting rates of reaction Flashcards

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1
Q

Activation energy

A

amount of energy needed for particles of reactants to start having successful collisions

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2
Q

Exothermic reaction

A

releases energy / heat

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3
Q

Endothermic reaction

A

needs energy input /heat

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4
Q

Which type of reaction needs activation energy

A

endothermic

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5
Q

How concentration affects rate of reaction

A

more reacting particles means more collisions

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6
Q

how surface area affects rate of reaction

A

more area for collisions to occur

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7
Q

How pressure of gases affects rate of reaction

A

reactant particles are squeezed together

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8
Q

how temperature affects rate of reaction

A

reactant particles speed up due to more energy

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9
Q

how catalyst affects rate of reaction

A

produced activation energy by orienting reactant particles

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GCSE Chemsitry (11 decks)

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