Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium concentration of H2O(g).C2H4(g) + H2O(g) ↔ C2H5OH(g) Kc = 9.0 × 103[C2H4]eq = 0.015 M [C2H5OH]eq = 1.69 M

The equilibrium concentration of water vapor is 0.0125 M.

Explanation:

The concentration of ethene at an equilibrium =

The concentration of water vapor at an equilibrium =

The concentration of ethanol at an equilibrium =

the equilibrium constant of the reaction,  

The expression of an equilibrium constant will be written as:

The equilibrium concentration of water vapor is 0.0125 M.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.