What is the equation for the equilibrium constant (Kp) for the following reversible reaction?

aA(g) + bB(g) ⇌ cC(g) + dD(g)

Kp ​=p(A)ap(B)bp(C)cp(D)d​

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What is the mole fraction of a gas?

The proportion of the total gas mixture that is made up of that particular gas.


Mole fraction is represented by the symbol χ. 

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What is the formula for calculating mole fraction?

mole fraction = total number of moles in the mixturenumber of moles of gas​

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What is the sum of mole fractions in a gas mixture?

1

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What is partial pressure?

The pressure exerted by each individual gas component in a gaseous mixture.


Partial pressure is represented by the symbol p.

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How is the partial pressure of a gas calculated?

partial pressure = mole fraction of the gas× total pressure

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What is the difference between Kp and Kc?

Kp is based on partial pressures.

Kc is based on concentrations.

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What species are included in the Kp expression?

Only gases are included in the Kp expression.

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What does the letter p represent in the Kp equation?

Partial pressure

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What are the units of Kp?

The units of Kp vary depending on the number of pressure terms in the Kp equation.

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