Thermochemistry Flashcards

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1
Q

Temperature

A

The average kinetic energy of the particles of a substance.

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2
Q

Bond energy

A

The amount of energy required to break a bond in one mole of the molecules in which the bond is formed.

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3
Q

Heat of Reaction

A

The net change of chemical potential energy of a system during a chemical reaction.

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4
Q

Exothermic Reaction

A

A chemical reaction that transfers chemical potential energy into thermal energy.

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5
Q

Endothermic reaction

A

A chemical reaction that transfers thermal energy into chemical potential energy.

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6
Q

Activated complex

A

A high energy, unstable, temporary transition state between the reactants and the products.

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7
Q

Activation energy

A

The minimum energy required to start a chemical reaction.

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8
Q

Catalyst

A

A substance that increases the rate of reaction but remains unchanged at the end of the reaction

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