19 Equilibrium Flashcards

1
Q

Homogenous equilibrium

A

An equilibrium in which all species have the same physical state.

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2
Q

Heterogeneous equilibrium.

A

An equilibrium in which the species making up the reactants and products have different physical states.

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3
Q

How do you calculate the mole fraction of a gas?

A

Number of moles/total number of moles in gas mixtures

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4
Q

What is the equation for the partial pressure of a gas?

A

Mole fraction x total pressure

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5
Q

What is the effect of temperature on K if forward reaction is exothermic?

A

K decreases as temperature increases. Equilibrium shifts to the left.

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6
Q

What is the effect of temperature on K if the forward reaction is endothermic?

A

K increases as temperature increases. Equilibrium shifts to the right.

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7
Q

Effect of changing concentration or pressure on K.

A

K does not change.

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8
Q

How does a catalyst affect equilibrium constants?

A

K is unaffected as catalysts do not change the equilibrium position.

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