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Standard XII

Chemistry

Characteristics of Chemical Equilibrium

What is kp an...

Question

What is kp and kc

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Solution

Kc and Kp are the equilibrium constants of gaseous mixtures. However, the difference between the two constants is that Kc is defined by molar concentrations, whereas Kp is defined by the partial pressures of the gasses inside a closed system. The equilibrium constants do not include the concentrations of single components such as liquids and solid, and they do not have any units.

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Similar questions

The relation between equilibrium constant $K_{P}$ and $K_{C}$ is

For a general reaction aA(g) + bB(g) $⇋$ cC(g)+ dD(g), what is the relationship between the equilibrium constants $K_{c}$ and $K_{p}$ ? [assume $Δ$ n = $μ$ = (c + d) - (a+b) ]\)

K_{P}

K_{C}

Q. Assertion :

K_{p} = K_{c}

for all reactions. BECAUSE Reason:

K_{p}

and

K_{c}

are interrelated by the equation

K_{p} = K_{c} {(R T)}^{Δ n}

Q. For the reaction,

2 N O_{2} (g) ⇌ 2 N O (g) + O_{2} (g)

.
(

K_{c} = 1.8 \times 10^{- 6}

184^{o} C

(R = 0.0831 k J / (m o l . K J))

when

K_{p}

and

K_{c}

are compared at

184^{o} C

it is found that
(1) Whether

K_{p}

is greater then, less then or equal to

K_{c}

depends upon the total gas pressure
(2)

K_{p} = K_{c}

(3)

K_{p}

is less then

K_{c}

(4)

K_{p}

is greater then

K_{c}

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