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Key Definitions 5.1.2

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Total cards: 9•Content version: v4•Public deck•Updated: 8/1/2026

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#1
Front (Question)

Catalyst

Back (Answer)

A substance which speeds up the rate of a reaction without being used up

#2
Front (Question)

Concentration

Back (Answer)

The amount of a substance that is dissolved per unit volume of solution

#3
Front (Question)

Equilibrium Constant (K)

Back (Answer)

A value that relates the amount of products and reactants at equilibrium (in a reversible reaction) at a specific temperature. K is unaffected by pressure or presence of a catalyst, but is affected by temperature

#4
Front (Question)

Heterogeneous Equilibrium

Back (Answer)

An equilibrium reaction that involves substances in different states

#5
Front (Question)

Homogeneous Equilibrium

Back (Answer)

An equilibrium reaction that involves substances all in the same state

#6
Front (Question)

Kc, the equilibrium constant

Back (Answer)

Concentration of products raised to their stoichiometric coefficients divided by the concentration of reactants to the power of their stoichiometric coefficients. Liquids/ solids aren’t included

#7
Front (Question)

Kp, the equilibrium constant

Back (Answer)

partial pressures of the products raised to the power of their stoichiometric coefficients divided by the partial pressures of the reactants raised to the power of their stoichiometric coefficients.

#8
Front (Question)

Mole Fraction, Xa

Back (Answer)

number of moles of a substance/ total number of moles

#9
Front (Question)

Partial Pressure

Back (Answer)

the pressure that would be exerted by one gas in a mixture if it occupied the container alone. Total pressure x mole fraction