You visited us 7 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Characteristics of Equilibrium Constant

2 moles of ...

Question

$2$ moles of $N_{2} O_{4}$ is heated in a $5$ lit vessel till the equilibrium reached. If $0.5$ moles of $N_{2} O_{4}$ is present at equilibrium, the equilibrium constant for the reaction is:

3.6

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

36

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.36

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.9

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $3.6$
The given reaction is :-
$N_{2} O_{4} (g) ⇌ 2 {N O}_{2} (g)$
Initial moles : $2$ $0$
At eqm : $(2 - x)$ $2 x$ (let)
Given, $(2 - x) = 0.5$
$\Rightarrow x = 1.5$
Now, No. of moles of ${N O}_{2}$ at eqm $= 2 \times 1.5 = 3$
At eqm, $[N_{2} O_{4}] = \frac{0.5}{5} = 0.1 M$
$[{N O}_{2}] = \frac{3}{5} = 0.6 M$
Now, $K_{C} = \frac{{[{N O}_{2}]}^{2}}{[N_{2} O_{4}]} = \frac{0.6 \times 0.6}{0.1} = 3.6 M$

Suggest Corrections

Similar questions

Q. 9.2 gm of

N_{2} O_{4} (g)

is taken in a closed one-litre vessel and heated till the following equilibrium is reached

N_{2} O_{4} (g) ⇌ 2 N O_{2} (g)

At equilibrium 50% of

N_{2} O_{4} (g)

is dissociated. What is the equilibrium constant?

[in mole lit

^{- 1}

] [M.wt. of

N_{2} O_{4}

is 92]

Q. At a certain temperature 2 moles of carbonmonoxide and 3 moles of chlorinw were allowed to reach equilibrium according to the reaction

C O_{(g)} + C l_{2} ⇋ C O C l_{2}

in a 5 lit vessel. At equilibrium if one mole of

C O

is present then equilibrium constant for the reaction is ____

18.4

g of

N_{2} O_{4}

is taken in a

1

L closed vessel and heated till the equilibrium is reached.

N_{2} O_{4 (g)} ⇌ 2 N O_{2 (g)}

At equilibrium it is found that

50 %

N_{2} O_{4}

is dissociated. What will be the value of equilibrium constant?

Q. 9.2 grams of

N_{2} O_{4}

is taken in a closed one litre vessel and heated till the following equilibrium is reached

N_{2} O - 4 (g) ⇌ 2 N O_{2} (g)

At equilibrium,

50 % N_{2} O_{4} (g)

is dissocated.What is the equilibrium constant (in mol

l i t r e^{- 1}

)? (molecular mass of

N_{2} O_{4} = 92

)

Q. A mixture of

2

moles of

N_{2}

and

8

moles of

H_{2}

are heated in a

2

lit vessel, till equilibrium is established. At equilibrium

0.4

moles of

N_{2}

was present. What will be the equilibrium concentration of

H_{2}

Join BYJU'S Learning Program

2 moles of N2O4 is heated in a 5 lit vessel till the equilibrium reached. If 0.5 moles of N2O4 is present at equilibrium, the equilibrium constant for the reaction is:

The correct option is A 3.6The given reaction is :- N2O4(g)⇌2NO2(g)Initial moles : 2 0At eqm : (2−x) 2x (let)Given, (2−x)=0.5 ⇒x=1.5Now, No. of moles of NO2 at eqm =2×1.5=3At eqm, [N2O4]=0.55=0.1M [NO2]=35=0.6MNow, KC=[NO2]2[N2O4]=0.6×0.60.1=3.6M

$2$ moles of $N_{2} O_{4}$ is heated in a $5$ lit vessel till the equilibrium reached. If $0.5$ moles of $N_{2} O_{4}$ is present at equilibrium, the equilibrium constant for the reaction is: