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Effect on Kc

3 moles of ...

Question

3 moles of $A$ and 4 moles of $B$ are mixed together and allowed to come into equilibrium according to the following reaction:

$A_{(g)} + 4 B_{(g)} ⇌ 2 C_{(g)} + 3 D_{(g)}$

When equilibrium is reached, there is 1 mole of $C$ . The equilibrium constant of the reaction is:

\frac{1}{4}

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\frac{1}{3}

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\frac{1}{2}

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Solution

The correct option is C $\frac{1}{2}$
$A + 4 B ⇌ 2 C + 3 D$

Initial $3$ $4$ $0$ $0$

At equi. $3 x - 1$ $4 - 4 x$ $2 x$ $3 x$

It is given that $2 x = 1$ or $x = 1 / 2$

Equilibrium extent

$= \frac{A m o u n t o f p r o d u c t f o r m e d}{S t o i c h i o m e t r i c c o e f f i c i e n t o f p r o d u c t} = \frac{1}{2}$

Hence, the correct option is $C$

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Similar questions

3

moles of

A

and

4

moles of

B

are mixed together and allowed to cime into equilibrium according to the following reaction

3 A_{(g)} + 4 B_{(g)} ⇌ 2 C_{(g)} + 3 D (g)

When equilibrium is reached, there is

1

mole of

C

. The equilibrium extent of the reaction is:

4 moles of A are mixed with 4 moles of B, then 2 moles of C are formed at equilibrium, according to the reaction,
A + B $⇌$ C + D.
The equilibrium constant is :

Q. 2 moles of A & 3 moles of B are mixed in 1 litre vessel and the reaction is carried at

400^{\circ}

C according to the equation;

A + B ⇌ 2 C .

The equilibrium constant of the reaction is 4. Find the number of moles of C at equilibrium.

4

moles of

A

are mixed with

4

moles of

B

when

2

moles of

C

are formed at equilibrium according to the reaction

A + B ⇌ C + D

The value of the equilibrium constant is :

2

moles of

A

and

3

moles of

B

are mixed and the reaction is carried at

400^{o} C

according to the equation,

A + B ⇌ 2 C

the equilibrium constant of the reaction is

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3 moles of A and 4 moles of B are mixed together and allowed to come into equilibrium according to the following reaction:A(g)+4B(g)⇌2C(g)+3D(g)When equilibrium is reached, there is 1 mole of C. The equilibrium constant of the reaction is:

The correct option is C 12 A+4B⇌2C+3DInitial 3 4 0 0At equi.3x−1 4−4x 2x 3xIt is given that 2x=1 or x=1/2Equilibrium extent=AmountofproductformedStoichiometriccoefficientofproduct=12Hence, the correct option is C

3 moles of $A$ and 4 moles of $B$ are mixed together and allowed to come into equilibrium according to the following reaction:

$A_{(g)} + 4 B_{(g)} ⇌ 2 C_{(g)} + 3 D_{(g)}$

When equilibrium is reached, there is 1 mole of $C$ . The equilibrium constant of the reaction is: