MyQuestionIcon

2

You visited us 2 times! Enjoying our articles? Unlock Full Access!

Characteristics of Equilibrium Constant

The value of ...

Question

The value of $K_{c}$ for the dissociation reaction $H_{2} (g) ⇌ 2 H (g)$ is $2.1 \times 10^{- 42}$ . This equilibrium mixture contains mainly.

A

H_{2} (g)

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

B

H (g)

atom

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

C

1 : 1

molar mixture of

H_{2}

and

H

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

D

1 : 2

molar mixture of

H_{2}

and

H

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

Open in App

Solution

The correct option is B $H_{2} (g)$
Since, $K_{c}$ is very small, hence $[H_{2}]$ is predominant.

Suggest Corrections

thumbs-up

0

Similar questions

Q. At 100 K, then value of

K_{c}

for the reaction

C (s) + H_{2} O (g) ⇌ C O (g) + H_{2} (g)

3.0 \times 10^{2}

. Calculate equilibrium concentrations of

H_{2} O, C O_{2}

H_{2}

in the reaction mixture obtained by heating 6.0 mole of steam and an excess of solid carbon in a 5.0 L container. What is the molar composition of the equilibrium mixture?

Q. An equilibrium mixture for the reaction

H_{2} S (g) ⇌ H_{2} (g) + S_{2} (g)

had 1 mol of hydrogen sulphide, 0.2 mol of

H_{2}

S_{2}

in a 2 L vessel. The value of

K_{c}

Q. The partial pressures of

{C H}_{3} O H, C O

H_{2}

in the equilibrium mixture for the reaction

C O + 2 H_{2} ⇌ {C H}_{3} O H

427^{o} C

2.0, 1.0

0.1

atm respectively. The value of

K_{p}

for the decomposition of

{C H}_{3} O H

C O

H_{2}

Q. An equilibrium mixture for the reaction:

2 H_{2} S (g) \Leftrightarrow 2 H_{2} (g) + S_{2} (g)

H_{2} S

H_{2}

and 0.8 mole of

S_{2}

in 2 L flask. The value of

K_{c}

m o l . l i t^{- 1}

Q. A mixture of gases contains

H_{2} (g)

O_{2} (g)

in the ratio of

1 : 4 (w / w)

. What is the molar ratio of the two gases in the mixture?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Equilibrium Constants

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Characteristics of Equilibrium Constant

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon