MyQuestionIcon

1

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

Introduction to Alcohols

16 moles of H...

Question

16 moles of $H_{2}$ and 4 moles of $N_{2}$ are sealed in an one litre vessel. The vessel is heated at a constant temperature until the equilibrium is established, it is found that the pressure in the vessel has fallen to 9/10 th of its original value. Calculate new concentration of $N_{2}$ and $N H_{3}$ in $m o l L^{- 1}$
$N_{2} (g) + 3 H_{2} (g) ⇌ 2 N H_{3} (g)$

Open in App

Solution

The given equilibrium is
$\begin{matrix} N_{2} (g) & + & 3 H_{2} (g) & ⇌ & 2 N H_{3} (g) A t t = 0 & 4 & 16 & 0 A t e q u i l i b r i u m & 4 - x & 16 - 3 x 2 x \end{matrix}$
Total gaseous moles at equilibrium $= 4 - x + 16 - 3 x + 2 x = (20 - 2 x)$
Since, pressure has fallen to 9/10 of its original value, hence no. of mole will also fall up to the same extent.
$(20 - 2 x) = \frac{9}{10} \times 20 = 18$
$x = 1$
$[N_{2}] = \frac{4 - x}{1} = \frac{4 - 1}{1} = 3 m o l e / l i t r e$
$[N H_{3}] = \frac{2 x}{1} = 2 m o l e / l i t r e$

Suggest Corrections

thumbs-up

1

Similar questions

Q. At a certain temperature (T), the equilibrium constant

(K_{c})

is 1 for the reaction

N_{2} (g) + 3 H_{2} (g) ⇌ 2 N H_{3} (g)

N_{2},

H_{2},

N H_{3}

and 3 moles of inert gas are introduced into a two litre rigid vessel at constant temperature T. It has been found that equilibrium concentration of

H_{2}

N H_{3}

are equal then what is the equilibrium concentration of

N_{2}

N_{2}

H_{2}

are placed in 1L vessel. Find the concentration of

{N H}_{3}

at equilibrium if the equilibrium constant

(K_{c})

\frac{4}{27}

.

N_{2} (g) + {3 H}_{2} (g) ⇌ 2 N H_{3} (g)

2

N_{2}

6

H_{2}

in closed vessel of one litre capacity. If

50

N_{2}

is converted into

{N H}_{3}

at equilibrium, the value of

K_{c}

for the reaction,

N_{2} (g) + 3 H_{2} (g) ⇌ 2 {N H}_{3} (g)

Q. A mixture containing

2

N_{2}

3

H_{2}

gas is brought to equilibrium in a

3 L

vessel. If the molar concentration of

N H_{3}

at equilibrium is

1 / 3 m o l / L

, calculate the

K_{c}

for the formation of

N H_{3}

.

N_{2} (g) + 3 H_{2} (g) ⇌ 2 N H_{3} (g)

Q. A mixture of

2

N_{2}

8

H_{2}

are heated in a

2

lit vessel, till equilibrium is established. At equilibrium

0.4

N_{2}

was present. What will be the equilibrium concentration of

H_{2}

?

View More

Join BYJU'S Learning Program

explore_more_icon

Explore more

Introduction to Alcohols

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon