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Standard XII

Chemistry

Thermodynamic Processes

The relation ...

Question

The relation between $K_{p}$ and $K_{c}$ for the reaction $2 N O (g) + C I_{2} (g) ⇌ 2 N O C I (g)$ is ?

K_{p} = K_{c}

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K_{p} = K_{c} (R T)

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K_{p} = K_{c} / R T

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K_{p} = K_{c} / (R T)^{2}

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Solution

The correct option is C $K_{p} = K_{c} / R T$
$K_{P} = K_{C} [R T]^{Δ n g}$ where, $Δ n g = 2 - 1 - 2 = - 1$ .
$K_{P} = K_{C} [R T]^{- 1}$
$K_{P} = \frac{K_{C}}{R T}$ .

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Similar questions

Q. For the reaction,

P C I_{5} (g) ⇌ P C I_{3} (g) + C I_{2} (g)

K_{p}

and

K_{c}

are related as

K_{p} = K_{c} (R T)

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

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}

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) ]\)

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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The relation between Kp and Kc for the reaction 2NO(g)+CI2(g) ⇌2NOCI(g) is ?

The correct option is C Kp=Kc/RTKP=KC[RT]Δng where, Δng=2−1−2=−1.KP=KC[RT]−1KP=KCRT .

The relation between $K_{p}$ and $K_{c}$ for the reaction $2 N O (g) + C I_{2} (g) ⇌ 2 N O C I (g)$ is ?

The correct option is C $K_{p} = K_{c} / R T$
$K_{P} = K_{C} [R T]^{Δ n g}$ where, $Δ n g = 2 - 1 - 2 = - 1$ .
$K_{P} = K_{C} [R T]^{- 1}$
$K_{P} = \frac{K_{C}}{R T}$ .