MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Reaction Quotient

The equilibri...

Question

The equilibrium constant $k_{p}$ for the reaction
$2 S O_{2} + O_{2} \Leftrightarrow 2 S O_{3}$ is 2.5 $a t m^{- 1}$ . What would be the partial pressure of $O_{2}$ , if the equilibrium pressures of $S O_{2}$ and $S O_{3}$ are equal?

A

304 mm

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

B

30.4 mm

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

C

0.04 mm

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

D

760 mm

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

Open in App

Solution

The correct option is A 304 mm
The equilibrium reaction is $2 S O_{2} + O_{2} \Leftrightarrow 2 S O_{3}$
The expression for the equilibrium constant is $K_{p} = \frac{[S O_{3}]^{2}}{[S O_{2}]^{2} [O_{2}]}$
But $[S O_{3}] = [S O_{2}]$ and $K_{p} = 2.5 a t m^{- 1}$
Substitute the values in the above expression.
$2.5 = \frac{[S O_{3}]^{2}}{[S O_{2}]^{2} [O_{2}]} = \frac{1}{[O_{2}]}$
Thus $[O_{2}] = 0.4 = 0.4 \times 760 = 304 m m$

Suggest Corrections

thumbs-up

0

Similar questions

Q. In the equilibrium,

2 {S O}_{2} + O_{2} ⇌ 2 S O_{3}

the partial pressure of

{S O}_{2}, O_{2}

S O_{3}

are 0.662,0.10 and 0.331 respectively.What should be the partial pressure of oxygen so that the equilibrium concentration of

{S O}_{2}

S O_{3}

Q. The equilibrium constant for the reaction

2 S O_{2} + O_{2} ⇋ 2 S O_{3} i s 900 a t m^{- 1} a t 800 K .

A mixture containing

S O_{3} a n d O_{2}

having initial pressures of

1 a t m a n d 2 a t m

is heated to equilibrate. The partial pressure of

O_{2}

at equilibrium will be

Q. In the equilibrium,

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

the equilibrium partial pressure of

S O_{2}, O_{2}

S O_{3}

0.6, 0.1

0.3

atm respectively. what would be the

K_{p}

?

Q. At T(K), the partial pressures of

S O_{2}, O_{2}

S O_{3}

are 0.662, 0.100 and 0.331 atm, respectively for the reaction

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

at equilibrium. What is the partial pressure in atm, of

O_{2}

when the equilibrium partial pressures of

S O_{2}

S O_{3}

are equal at the same temperature ?

Q. The equilibrium constant for the reaction

2 S O_{2} + O_{2} ⇋ 2 S O_{3} i s 900 a t m^{- 1} a t 800 K .

A mixture containing

S O_{3} a n d O_{2}

having initial pressures of

1 a t m a n d 2 a t m

is heated to equilibrate. The partial pressure of

O_{2}

at equilibrium will be

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Equilibrium Constants

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Reaction Quotient

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon