MyQuestionIcon

5

You visited us 5 times! Enjoying our articles? Unlock Full Access!

Mole Concept and Avogadro's Number

mixture of SO...

Question

mixture of SO3, SO2 and O2 gases is maintained at equilibrium in 10 litre flask at a temp in which Kc for the reaction 2SO2 + O2 gives 2SO3. Kc= 100 .at equilibrium-
1. if no. of moles of SO3 and SO2 in flask are same then how many moles of O2 are present.
2.no. of moles of SO3 is twice of SO2, then how many moles of O2 are present.

Open in App

Solution

1. We know,at equilibrium ,

K_c = $\frac{[S O_{3}]^{2}}{[S O_{2}]^{2} [O_{2}]} = 100$
As moles of SO₂ is equal to that of SO₃ ,
[SO₂] = [SO₃]
[O₂] = $\frac{1}{100}$ $\frac{m o l e s o f S O_{3}}{m o l e s o f S O_{2}} = 2 W e a g a i n h a v e, K_{c} = \frac{[S O_{3}]^{2}}{[S O_{2}]^{2} [O_{2}]} = 100 (\frac{m o l e s o f S O_{3}}{m o l e s o f S O_{2}})^{2} (\frac{10}{m o l e s o f O_{2}}) = 100 2^{2} \times \frac{10}{m o l e s o f O_{2}} = 100 m o l e o f O_{2} = 0.4$
$\frac{M o l e o f O_{2}}{10} = \frac{1}{100} (v o l = 10 L) M o l e o f O_{2} = 0.1$
2. Further,if moles of SO₃ are twice that of SO₂,

Suggest Corrections

thumbs-up

1

Similar questions

Q. A mixture of

S O_{3}, S O_{2}

O_{2}

gases are maintained at equilibrium in 10 litre flask at a temperature at which

K_{c}

for the reaction,

2 S O_{2} (g) + O_{2} (g) \Leftrightarrow 2 S O_{3} (g)

m o l^{- 1}

litre. At equilibrium,

a) If no of mole of

S O_{3}

S O_{2}

in the flask are same, how many moles of

O_{2}

are present?
b) If no. of mole of

S O_{3}

in the flask are twice the no of mole of

S O_{2}

, how many moles of

O_{2}

Q. Homogeneous equilibrium :

K_{c}

is gaseous system
A mixture of

S O_{3}, S O_{2}

O_{2}

gases is maintained at equilibrium in

10

litre flask at a temperature at which

K_{c}

for the reaction,

2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{2} (g)

100 m o l^{- 1}

litre. At equilibrium.
(a) If no. of mole of

S O_{3}

S O_{2}

in flask are same, how many mole of

O_{2}

are present?
(b) If no. of mole of

S O_{3}

in flask are twice the no. of mole of

S O_{2}

, how many mole of

O_{2}

Q. A mixture of

{S O}_{3}, {S O}_{2}

O_{2}

gases is maintained in a

10 L

flask at a temperature at which the equilibrium constant for the reaction is

100

and the reaction is,

2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g)

.
(i) If the number of moles of

{S O}_{2}

{S O}_{3}

in the flask are equal, how many moles of

O_{2}

are present?
(ii) If the number of moles of

{S O}_{3}

in the flask is twice the number of moles of

{S O}_{2}

, how many moles of oxygen are present?

Q. A mixture of

S O_{3}

S O_{2}

O_{2}

gases is maintained in a

10.0 L

flask at a temperature at which equilibrium constant

K_{c}

fo the reaction

2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g)

100

Then choose the correct statements :

Q. At 800 K a reaction mixture contained 0.5 mole of

S O_{2}

O_{2}

S O_{3}

at equilibrium.

K_{c}

for the equilibrium

2 S O_{2} + O_{2} ⇌ 2 S O_{3}

is 833 lit/ mole. If the voiume of the container is 1 litre, calculate how much

O_{2}

is to be added at this equilibrium in order to get 5.2 moles of

S O_{3}

at the same temperature.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Mole concept and Avogadro's Number

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Mole Concept and Avogadro's Number

Standard X Chemistry

Join BYJU'S Learning Program

CrossIcon