Given the concentrations, calculate the equilibrium constant for this reaction: pcl3(g) +cl2(g)⇌pcl5(g) at equilibrium, the molar concentrations for reactants and products are found to be [pcl3]=0.20 m, [cl2]=0.25 m, and [pcl5]=1.20 m. what is the equilibrium constant (kc) for this reaction? express your answer using two significant figures.

Thus the value of the equilibrium constant is

Explanation:

Equilibrium constant is the ratio of the concentration of products to the concentration of reactants each term raised to its stochiometric coefficients.

At eqm. conc.    (0.20) M    (0.25) M      (1.20) M

The expression for equilibrium constant for this reaction will be,

The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

Thus the value of the equilibrium constant is

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.