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unit 5 revision Flashcards

(7 cards)

1
Q

What is an exothermic energy transfer?

A

transfer to the surroundings

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2
Q

What is an endothermic energy transfer?

A

transfer from the surroundings

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3
Q

What is a reaction profile?

A

diagram showing how the energy changes in a reaction

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4
Q

What is the activation energy?

A

minimum amount of energy required before a collision will result in a reaction

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5
Q

What is bond energy?

A

the energy required to break a bond or the energy released when a bond is formed

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6
Q

In terms of bond breaking and making, what is an exothermic reaction?

A

less energy is required to break the bonds than is released when making the bonds

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7
Q

In terms of bond breaking and making, what is an endothermic reaction?

A

more energy is required to break the bonds than is released when making the bonds

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