Equilibrium

\({\mathrm{CO}}_{2}(\mathrm{g})+\mathrm{C}(\mathrm{s})⇌2\mathrm{CO}(\mathrm{g})\)

If initial pressure of \({\mathrm{CO}}_{2}\)is 0.6 atm and after equilibrium is established, total pressure is 0/8 atm. Then, find \({\mathrm{K}}_{\mathrm{p}}\).

(Memory Based JEE Mains 22/01/2025, Shift -1)

Le-Chatelier’s principle is not applicable to

The pH of 1 N aqueous solutions of HCl, \(C{H}_{3}COOH\) and HCOOH follows the order:

The molar solubility(s) of zirconium phosphate with molecular formula \({\left({\mathrm{Zr}}^{4+}\right)}_{3}{\left(P{{O}_{4}}^{-3}\right)}_{4}\) is given by relation

Find the value of solubility of zirconium phosphate with formula \(\left[{\mathrm{Zr}}_{3}{\left({\mathrm{PO}}_{4}\right)}_{4}\right]\) in terms of solubility product Ksp

(memory based jee mains shift-2 22/01/2025)

\({\mathrm{CO}}_{2}(\mathrm{g})+\mathrm{C}(\mathrm{s})⇌2\mathrm{CO}(\mathrm{g})\)

If initial pressure of \({\mathrm{CO}}_{2}\)is 0.6 atm and after equilibrium is established, total pressure is 0/8 atm. Then, find \({\mathrm{K}}_{\mathrm{p}}\).

(Memory Based JEE Mains 22/01/2025, Shift -1)

For a reaction, \({N}_{2}{O}_{5(g)}\to 2N{O}_{2(g)}+\frac{1}{2}{O}_{2(g)}\) in a constant volume container, no products were present initially. The final pressure of the system when 50 % of reaction gets completed is

[JEE Main 2025, 24 Jan (Shift 1)]

In which of the following equilibria, \({K}_{p}\) and \({K}_{c}\) are not equal?

[NEET 2024]

Consider the following reaction in a sealed vessel at equilibrium with concentrations of \({N}_{2}=3.0\times {10}^{-3}M,{O}_{2}=4.2\times {10}^{-3}M\) and \(NO=2.8\times {10}^{-3}M\).
\(2N{O}_{(g)}⇌{N}_{2(g)}+{O}_{2(g)}\)

If \(0.1mol{L}^{-1}\) of \(N{O}_{(g)}\) is taken in a closed vessel, what will be degree of dissociation \((\alpha )\) of \(N{O}_{(g)}\) at equilibrium?

[NEET 2024]

Consider the following reaction (memory based jee mains shift-1 29/01/2025)

\({\mathrm{A}}_{2}\mathrm{B}\left(\mathrm{g}\right)⇌{\mathrm{A}}_{2}\left(\mathrm{g}\right)+\frac{1}{2}{\mathrm{B}}_{2}\left(\mathrm{g}\right)\)

If 'P' is the total pressure at equilibrium and K is the equilibrium constant, then \(\alpha\) in terms of K and P will be

A vessel at 1000 K contains carbon dioxide with a pressure of 0.5 atm. Some of carbon dioxide is converted into carbon monoxide on addition of graphite. If total pressure at equilibrium is 0.8 atm, then \({\mathrm{K}}_{\mathrm{p}}\)is

Consider the following reaction (memory based jee mains shift-1 29/01/2025)

\({\mathrm{A}}_{2}\mathrm{B}\left(\mathrm{g}\right)⇌{\mathrm{A}}_{2}\left(\mathrm{g}\right)+\frac{1}{2}{\mathrm{B}}_{2}\left(\mathrm{g}\right)\)

If 'P' is the total pressure at equilibrium and K is the equilibrium constant, then \(\alpha\) in terms of K and P will be

For the reaction \(2\mathrm{A}⇌\mathrm{B}+\mathrm{C},{\mathrm{K}}_{\mathrm{c}}=4\times {10}^{-3}\). At a given time, the composition of reaction mixture is :

[A]=[B]=[C]=\(2\times {10}^{-3}\) M

Then, which of the following is correct?

[NEET 2024]

A weak acid HA has degree of dissociation x. Which option gives the correct expression of ( \(pH-\) \(\left.p{K}_{a}\right)\) ?

At a given temperature and pressure, the equilibrium constant values for the equilibria are given below:
\(3{A}_{2}+{B}_{2}⇌2{A}_{3}B,{K}_{1}\\ {A}_{3}B⇌\frac{3}{2}{A}_{2}+\frac{1}{2}{B}_{2},{K}_{2}\)

The relation between \(K _1\) and \(K _2\) is :

Consider the equilibrium

\(CO(g)+3{H}_{2}(g)⇌C{H}_{4}(g)+{H}_{2}O(g)\)

If the pressure applied over the system increases by two fold at constant temperature then
(A) Concentration of reactants and products increases.
(B) Equilibrium will shift in forward direction.
(C) Equilibrium constant increases since concentration of products increases.
(D) Equilibrium constant remains unchanged as concentration of reactants and products remain same.
Choose the correct answer from the options given below

Ice and water are placed in a closed container at a pressure at 1 atm and temperature 273.15 K .
If the pressure of the container increases 2 times and the temperature is kept constant, than identify the correct observation from the following.

pH of water is 7 at 25 degree celsius. If water is heated to 80 degree celsius, it's pH will:

A weak acid HA has degree of dissociation x. Which option gives the correct expression of (\(\mathrm{pH}-{\mathrm{pk}}_{\mathrm{b}}\))

(Memory-based Question 28/ Jan/25 morning shift )

The ratio of solubility of \(AgCl\) in \(0.1 M ~KCl\) solution to the solubility of \(AgCl\) in water is
(Given : Solubility product of \(AgCl =10^{-10}\) )

[Re-NEET 2024]

Consider the given following reaction

\({\mathrm{X}}_{2}\mathrm{Y}(\mathrm{s})⇌{\mathrm{X}}_{2}(\mathrm{g})+1/2{\mathrm{Y}}_{2}(\mathrm{g}).\mathrm{If}\alpha\) is the degree of dissociation. Calculate \({\mathrm{K}}_{\mathrm{p}}\)in the terms of P total pressure. (Memory Based JEE Mains 23/01/2025 ,Shift -2)

\({K}_{sp}\) for \(Cr(OH{)}_{3}\) is \(1.6\times {10}^{-30}\). What is the molar solubility of this salt in water?

Ice and water are placed in a closed container at a pressure of 1 atm and temperature 273.15 K . If pressure of the system is increased 2 times, keeping temperature constant, then identify correct observation from following

[JEE Main 2025, 28 Jan (Shift 1)]

Arrange the following in increasing order of solubility product : \(Ca(OH{)}_{2},AgBr,PbS,HgS\)

At temperature T, compound \(A{B}_{2(g)}\) dissociates as \(A{B}_{2(g)}⇌AB(g)+\frac{1}{2}{B}_{2(g)}\) having degree of dissociation x (small compared to unity). The correct expression for x in terms of \({K}_{p}\) and p is

What will be the effect on pH of water when it is heated

Which among the following salt solutions is basic in nature?

Find out the solubility of \( \mathrm{Ni}(\mathrm{OH})_{2} \) in 0.1M NaOH. Given that the ionic product of \( \mathrm{Ni}(\mathrm{OH})_{2} \) is \( 2 \times 10^{-15} \)

\( \mathrm{PCl}_{5}, \mathrm{PCl}_{3} \) and \( \mathrm{Cl}_{2} \) are at equilibrium at \( 500 \mathrm{~K} \) in a closed container and their concentrations are \( 0.8 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}, 1.2 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1} \) and \( 1.2 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1} \) respectively. The value of \( K_{c} \) for the reaction \( \mathrm{PCl}_{5}(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \) will be