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Mole Concept

6. Why the va...

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6. Why the value of kp and kc depends on the temperature only but not on the concentration or the pressure or volume

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K_{c}

K_{p}

K_{x}

are the equilibrium constants of a reaction in terms of concentration, pressure and mole fraction respectively.
E :

K_{c}

K_{p}

do not depend on equilibrium pressure but

K_{x}

depends upon equilibrium pressure if

Δ n \neq 0

.

Q. The internal energy U of an ideal gas depends only on its temperature T, not on its pressure or volume.

K_{p}

can be equal to or less than or even greater than the value of

K_{c}

K_{p} = K_{c} {(R T)}^{Δ n}

the relation between

K_{p}

K_{c}

depends on the change in the number of moles of gaseous reactants and products.

K_{p}

can be equal to or less than or even greater than the value of

K_{c}

K_{c} = K_{p} (R T)^{- Δ n}

relation between

K_{p}

K_{c}

depends on the change in the number of moles of gaseous reactants and products.

Q. Assertion :Assertion :

K_{p}

can be less than, greater than or equal to

K_{c}

Reason: Reason : Relation between

K_{p}

K_{c}

depends on the change in the number of moles of gaseous reactants and products

(△ n)

.

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