Equilibrium practice · Mixed difficulty

$a A \rightleftharpoons b B+c C, \Delta H=-x \text { KCal}$

If high pressure and low temperature are the favourable condition for the formation of the product in above reaction, Hence:

1 mole of '$\mathrm{A}$', 1.5 mole of '$\mathrm{B}$' and 2 mole of '$\mathrm{C}$' are taken in a vessel of volume one litre. At equilibrium concentration of $\mathrm{C}$ is $0.5 \mathrm{~mole} / \mathrm{L}$. Equilibrium constant for the reaction $\mathrm{A}{(\mathrm{g})}+\mathrm{B}{(\mathrm{g})} \rightleftharpoons \mathrm{C}{(\mathrm{g})}$ is

Conjugate acid and bases for $\mathrm{H}_2 \mathrm{PO}_4^{-}$ ion respectively are

$\mathop {{{F}}{{{e}}^{3 + }}({{aq}}) + }\limits_{{\text{Yellow}}} {{SC}}{{{N}}^ - }({{aq}}) \rightleftharpoons \mathop {{{[{{Fe}}({{SCN}})]}^{2 + }}}\limits_{{\text{Red}}}$ Addition of the following increases the intensity of red colour.

Ammonium carbamate dissociates as
$\mathrm{NH}_2 \mathrm{COONH}_{4}(\mathrm{s}) \leftrightharpoons 2 \mathrm{NH}_{3}(\mathrm{g})+\mathrm{CO}_{2}(\mathrm{g})$
In a closed vessel containing ammonium carbamate in equilibrium, ammonia is added such that the partial pressure of $\mathrm{NH}_3$ now equals to the original total pressure. The ratio of total pressure now to the original pressure is

When pressure is applied to the equilibrium system ice r water. Which of the following phenomenon will happen?

Which one of the following salts on being dissolved in water gives $\mathrm{pH}\; > \;7\;\mathrm{at}\;25^\circ C$

Dissociation constant of two acids $\mathrm{HA}$ and $\mathrm{HB}$ are respectively $4 \times 10^{-10}$ and $1.8 \times 10^{-5}.$ The $\mathrm{pH}$ value of which acid will be higher for a given molarity of their aqueous solution?

$\mathrm{A}{\mathrm{g}^ + } + \mathrm{N}{\mathrm{H}_3}\;\leftrightharpoons{\left[ {\mathrm{Ag}\left( {\mathrm{N}{\mathrm{H}_3}} \right)} \right]^ + };\;\;{K_1} = 3.5 \times {10^{ - 3}}$
${\left[ {\mathrm{Ag}\left( {\mathrm{N}{\mathrm{H}_3}} \right)} \right]^ + } + \mathrm{N}{\mathrm{H}_3}\;\leftrightharpoons{\left[ {\mathrm{Ag}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_2}} \right]^ + };$
${K_2} = 1.7 \times {10^{ - 3}}$
Then the formation constant of${\left[ {\mathrm{Ag}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_2}} \right]^ + }$ is

Which one of the following statements is not true?

For which reaction ${K_p}$ is less than ${K_c}$?

$\mathrm{va}{\mathrm{n}^\mathrm{'}}\mathrm{t }\;\mathrm{Hoff's}$ equation giving the effect of temperature on chemical equilibrium is represented as:

Final pressure is higher than initial pressure of a container filled with an ideal gas at constant temperature. What will be the value of equilibrium constant?

For the decomposition of $\mathrm{PCl}_5(\mathrm{~g})$ in a closed vessel, the degree of dissociation is ' $\mathrm{x}$ ' at a total pressure ' $\mathrm{P}$ '.

$\mathrm{PCl}_5(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_3(\mathrm{~g})+\mathrm{Cl}_2(\mathrm{~g}) ; \mathrm{Kp}$

Which among the following relations is correct?

Which of the following can act both as Bronsted acid and Bronsted base?

The pH of pure water at ${50^0}C$ is

The $pH$ of a $0.0001\mathrm{ }N$ solution of $KOH$ will be

A solution that has reserve acidity (or) alkalinity is called

MY and $\mathrm{N}{\mathrm{Y}_\mathrm{3}}$, two nearly insoluble salts, have the same ${\mathrm{K}_{\mathrm{sp}}}$ values of $6.2 \times \mathrm{1}{\mathrm{0}^{ - 13}}$ at room temperature. Which statement would be true in regard to MY and $\mathrm{N}{\mathrm{Y}_\mathrm{3}}$?

40% of a mixture of 0.2 mole of ${\mathrm{N}_2}$ and 0.6 mole of ${\mathrm{H}_2}$ react to give $\mathrm{N}{\mathrm{H}_3}$ according to the equation,${\mathrm{N}_2}\left( \mathrm{g} \right) + 3{\mathrm{H}_2}\left( \mathrm{g} \right)\leftrightharpoons2\mathrm{N}{\mathrm{H}_3}\left( \mathrm{g} \right)$ at constant temperature and pressure. Then the ratio of the final volume to the initial volume of gases is :

Consider the following reversible chemical reactions
$\begin{array}{l} {A_2}(g) + {B_2}(g)\underset{{}}{\overset{{{K_1}}}{\leftrightharpoons}}2AB(g).....\,\left( \mathrm{i} \right)\\ 6AB(g)\underset{{}}{\overset{{{K_2}}}{\leftrightharpoons}}3{A_2}(g) + 3{B_2}(g)\,.....\,\left( {\mathrm{ii}} \right) \end{array}$
The relation between ${K_1}$ and ${K_2}$ is

The pH of a solution is 4. The hydrogen ion concentration of the solution in mol/L is

The aqueous solution of disodium hydrogen phosphate is:

If ${K_1}$ and ${K_2}$ are equilibrium constants for reactions (I) and (II) respectively for,

${\mathrm{N}_2} + {\mathrm{O}_2}\leftrightharpoons2\mathrm{NO}\,\,\,\,\, \ldots \left( \mathrm{i} \right)$

$\frac{1}{2}{\mathrm{N}_2} + \frac{1}{2}{\mathrm{O}_2}\leftrightharpoons\mathrm{NO}\,\,\,\, \ldots \left( {\mathrm{ii}} \right)$

Then:

A $50 \mathrm{~ml}$ of mixture of $\mathrm{He}, \mathrm{CO}$ and $\mathrm{C}_2 \mathrm{H}_6$ was exploded in $120 \mathrm{~ml}$ of oxygen. On cooling, the gases occupied $142 \mathrm{~ml}$. After treatment with $\mathrm{KOH}$ the volume reduced by $26 \mathrm{~ml}$ and again on treatment with alkaline pyrogallol the volume further reduced, then wrong one is ___

In a vessel containing $\mathrm{S}{\mathrm{O}_3},\,\mathrm{S}{\mathrm{O}_2},$ and ${\mathrm{O}_2}$ at equilibrium, some helium gas in introduced so that, the total pressure increase, while temperature and volume remain constant. According to Le-Chatelier’s principle the dissociation of $\mathrm{S}{\mathrm{O}_3}:$

Solution of aniline hydrochloride is $X$ due to hydrolys of $Y$. $X$ and $Y$ are

Which of the following is correct for the reaction?
${\mathrm{N}_2}\left( \mathrm{g} \right) + 3{\mathrm{H}_2}\left( \mathrm{g} \right)\leftrightharpoons2\mathrm{N}{\mathrm{H}_3}\left( \mathrm{g} \right)$

5 moles of $\mathrm{S}{\mathrm{O}_2}\;$ and 5 moles of ${\mathrm{O}_2}\;$ are allowed to react to forms $\mathrm{S}{\mathrm{O}_3}$ in a closed vessel. At the equilibrium stage 60% of $\mathrm{S}{\mathrm{O}_2}\;$ is used up. The total number of moles of $\;\mathrm{S}{\mathrm{O}_2}\;,{\mathrm{O}_2}\;and\;\mathrm{S}{\mathrm{O}_3}$ in the vessel now is

Assertion : For the reaction,

$2 {NH}_3({~g}) \rightleftharpoons {N}_2({~g})+3 {H}_2({~g})$, the unit of $K_p$ will be atm.

Reason : Unit of $K_p$ is $(a t m)^{\Delta n}$.