Pure ammonia is placed in a vessel at a temperature where its dis… - Vidyadip

MCQ

Pure ammonia is placed in a vessel at a temperature where its dissociation constant $(\alpha )$ is appreciable. At equilibrium :

✓
$\ce{K_p}$ does not change significantly with pressure.
B
$\alpha$ does not change with pressure.
C
The concentration of $\ce{NH_3}$ does not change with pressure.
D
The concentration of hydrogen is less than that of nitrogen.

✓

Answer

Correct option: A.

$\ce{K_p}$ does not change significantly with pressure.

The equilibrium constant does not change at all with changes in concentrations, volume, pressure, presence of catalyst, etc. It changes only with changes in temperature of the system. For endothermic reaction, the value of $K$ increases with increase in temperature and vice versa. For exothermic reaction, the value of $K$ decreases with increase in temperature and vice versa.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Equilibrium→Equilibrium — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The energy of electron in hydrogen atom in its grounds state is $ -13.6\, eV$ . The energy of the level corresponding to the quantum number equal to $5$ is ............. $\mathrm{eV}$

In an experiment it showed that $10\ mL$ of $ 0.05\ M$ solution of chloride required $10\ mL$ of $0.1\ M$ solution of $AgNO_3,$ which of the following will be the formula of the chloride ($X$ stands for the symbol of the element other than chlorine)

Which of the following changes decrease the vapour pressure of water kept in a sealed vessel?

Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by

If the atomic number of an element is $33$, it will be placed in the periodic table in the

Two salts $A _{2} X$ and $MX$ have the same value of solubility product of $4.0 \times 10^{-12}$. The ratio of their molar solubilities i.e. $\frac{S\left(A_{2} X\right)}{S(M X)}=...........$

(Round off to the Nearest Integer).

Which of the following is a Lewis base

According to Bronsted law, water is a/an

Circle represent most acidic hydrogens in these molecules. Which of the following is correct representation ?