Equilibrium practice · Mixed difficulty

Theory’s ‘active mass’ indicates that the rate of chemical reaction is directly proportional to the

1 mole of $\mathrm{NO}_2$ and 2 moles of $\mathrm{CO}$ are enclosed in a one litre vessel to attain the following equilibrium $\mathrm{NO}_2+\mathrm{CO} \leftrightharpoons \mathrm{NO}+\mathrm{CO}_2$. It was estimated that at the equilibrium, $25 \%$ of initial amount of $\mathrm{CO}$ is consumed. The equilibrium constant $\mathrm{K}_{\mathrm{p}}$ is

The solution of $\mathrm{AgCl}$ is unsaturated if:

In the case of gaseous homogeneous reaction, the concentrations of the reactants may be given by:

$K_1, K_2$ and $K_3$ are the equilibrium constants of the following reactions (I), (II) and (III) respectively:

(I) ${N}_2+2 {O}_2 \rightleftharpoons 2 {NO}_2$

(II) $2 {NO}_2 \rightleftharpoons {N}_2+2 {O}_2$

(III) ${NO}_2 \rightleftharpoons \frac{1}{2} {~N}_2+{O}_2$

The correct relation from the following is

The correct relation for hydrolysis constant of $\mathrm{N}{\mathrm{H}_4}\mathrm{CN}$ is:

An aqueous solution of $0.1\;M\;\mathrm{N}{\mathrm{H}_4}\mathrm{Cl}$ will have a $pH$ closer to:

The hydroxide having the lowest value of ${K_{sp}}$ at $25^\circ C$ is:

Among $\mathrm{BM}{\mathrm{e}_3},\mathrm{B}{\mathrm{F}_3},\mathrm{BC}{\mathrm{l}_3}\;\mathrm{and}\;{\mathrm{B}_2}{\mathrm{H}_6}$ which one will be the best Lewis acid?

For the equilibrium

$\mathrm{A}(\mathrm{g})+2 \mathrm{~B}(\mathrm{~g}) \rightleftharpoons \mathrm{AB}_2(\mathrm{~g})$

the value of equilibrium constant at $300 \mathrm{k}$ is $3 \times 10^{-3} \mathrm{~mole}^{-2} \mathrm{~L}^2$ and value of equilibrium constant at $500 \mathrm{k}$ is $5 \times 10^{-5} \mathrm{~mol}^{-2} \mathrm{~L}^2$.

What is the sign of enthalpy change for this reaction

Which of the following is a strong acid?

For the following three reactions I, II and III, equilibrium constants are given
I. $\mathrm{CO}\left( \mathrm{g} \right) + {\mathrm{H}_2}\mathrm{O}\left( \mathrm{g} \right)\leftrightharpoons\mathrm{C}{\mathrm{O}_2}\left( \mathrm{g} \right) + {\mathrm{H}_2}\left( \mathrm{g} \right);{K_1}$
II. $\mathrm{C}{\mathrm{H}_4}\left( \mathrm{g} \right) + {\mathrm{H}_2}\mathrm{O}\left( \mathrm{g} \right)\leftrightharpoons\mathrm{CO}\left( \mathrm{g} \right) + 3{\mathrm{H}_2}\left( \mathrm{g} \right);{K_2}$
III. $\mathrm{C}{\mathrm{H}_4}\left( \mathrm{g} \right) + 2{\mathrm{H}_2}\mathrm{O}\left( \mathrm{g} \right)\leftrightharpoons\mathrm{C}{\mathrm{O}_2}\left( \mathrm{g} \right) + 4{\mathrm{H}_2}\left( \mathrm{g} \right);{K_3}$
Which of the following relations is correct?
 

What is ${P^H}$ of 0.02 M solution of ammonium chloride at ${25^\mathrm{o}}C\,\,\,\,\left( {{K_b}\,\,\mathrm{ of }\,\,N{H_3} = 1.8 \times {{10}^{ - 5}}} \right)$

Consider the reaction, $C{H_3}COOH\mathrm{ } + \mathrm{ }{C_2}{H_5}OH\;\;\leftrightharpoons\;\;C{H_3}COO{C_2}{H_5} + \mathrm{ }{H_2}O.$ One mole each of $C{H_3}COOH$ and ${C_2}{H_5}OH$ are heated in the presence of little concentrated ${H_2}S{O_4}.$ On equilibrium:

Which of the following is the best conductor of electricity?

A decimolar solution of ammonium hydroxide is ionised to the extent of $1.3\%$. If $\log 1.3$. If $\log 1.3 = 0.11$ what is the $pH$ of the solution?

The concentration of ${CH}_3 {COO}^{-}$ ion in a solution prepared by adding 0.1 mole of ${CH}_3 {COOAg}(\mathrm{s})$ in 1 L of $0.1 \mathrm{~M}-{HCl}$ solution is $\left[\text{Given: }K_{\mathrm{a}}\left({CH}_3 {COOH}\right)=10^{-5} ; K_{\mathrm{sp}}({AgCl})=10^{-10} ; K_{\mathrm{sp}}\left({CH}_3 {COOAg}\right)=10^{-8}\right]$

1 mole of ${\mathrm{N}_2}{\mathrm{O}_4}\left( \mathrm{g} \right)$ at 300 K is kept in a closed container under 1 atm. It is heated to 600 K when 20% by mass of${\mathrm{N}_2}{\mathrm{O}_4}\left( \mathrm{g} \right)$ decomposes to $\mathrm{N}{\mathrm{O}_2}\left( \mathrm{g} \right)$. The resultant pressure is