A sample of pure PCl5 was introduced into an evacuated vessel at 473 K. After equilibrium was attained, the concentration of PCl5 was found to be \( 0.5\times 10^{-1}\). If value of Kc is \( 8.3\times 10^{-3}\), what are the concentrations of PCl3 and Cl2 at equilibrium?

PCl5(g) ⇌ PCl3(g)   +   Cl2(g)

Asked by Pragya Singh | 1 year ago |  66

1 Answer

Solution :-

Consider the conc. Of both PCl3 and Cl2 at equilibrium be x molL–1. The given reaction is:

PCl5(g) ⇌  PCl3(g)  + Cl2(g)

At equilibrium \( 0.5\times 10^{-10}molL^{-1}\) ,  x mol L-1 , x mol L-1

It is given that the value of equilibrium constant , 

Kc is \( 8.3\times 10^{-10}molL^{-3}\)

Now we can write the expression for equilibrium as:

Answered by Abhisek | 1 year ago

Related Questions

The concentration of sulphide ion in 0.1M HCl solution saturated with hydrogen sulphide is 1.0 × 10–19 M. If 10 mL of this is added to 5 mL of 0.04M solution of the following: FeSO4, MnCl2, ZnCl2 and CdCl2 . in which of these solutions precipitation will take place?

Class 11 Chemistry Equilibrium View Answer

What is the minimum volume of water required to dissolve 1g of calcium sulphate at 298 K? (For calcium sulphate, Ksp is 9.1 × 10–6).

Class 11 Chemistry Equilibrium View Answer

What is the maximum concentration of equimolar solutions of ferrous sulphate and sodium sulphide so that when mixed in equal volumes, there is no precipitation of iron sulphide? (For iron sulphide, Ksp = 6.3 × 10–18).

Class 11 Chemistry Equilibrium View Answer

The ionization constant of benzoic acid is 6.46 × 10–5 and Ksp for silver benzoate is 2.5 × 10–13. How many times is silver benzoate more soluble in a buffer of pH 3.19 compared to its solubility in pure water?

Class 11 Chemistry Equilibrium View Answer

Equal volumes of 0.002 M solutions of sodium iodate and cupric chlorate are mixed together. Will it lead to precipitation of copper iodate? (For cupric iodate Ksp = 7.4 × 10–8 ).

Class 11 Chemistry Equilibrium View Answer