Chemical equilibrium Flashcards

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1
Q

Equilibrium constant

A

An expression of the concentration of the products (gasses and solutions only) over the concentration of the reactants (gasses and solutions only) for a reaction that is in equilibrium.

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2
Q

Dynamic equilibrium

A

Reversible reaction in which the forward and the reverse reactions are taking place at the same rate, and hence the concentrations of reactants and products are constant.

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3
Q

Closed system

A

One in which mass is conserved inside the system but energy can enter or leave the system freely.

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4
Q

Open system

A

One in which both energy and matter can be exchanged between the system and its surroundings.

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5
Q

Reversible reaction

A

One in which products can be converted back into products.

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6
Q

Le Chatelier’s principle:

A

When an external stress (change in pressure, temperature or concentration) is applied to a system in dynamic chemical equilibrium, the equilibrium point will change in such a way as to counteract the stress.

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7
Q

Yield

A

A measure of the extent of a reaction, generally measured by comparing the amount of product against the amount of product that is possible.

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