At a certain temperature, the equilibrium constant, K c , for this reaction is 53.3. H 2 ( g ) + I 2 ( g ) − ⇀ ↽ − 2 HI ( g ) K c = 53.3 At this temperature, 0.800 mol H 2 and 0.800 mol I 2 were placed in a 1.00 L container to react. What concentration of HI is present at equilibrium?

Concentration of HI is present at equilibrium is 1.26 M

Explanation:

Moles of   = 0.800 mole

Moles of   = 0.800 mole

Volume of solution = 1.00 L

Initial concentration of = 0.800 M

Initial concentration of = 0.800 M

The given balanced equilibrium reaction is,

Initial conc.         0.800     0.800             0

At eqm. conc.     (0.800-x) M   (0.800-x) M   (2x) M

The expression for equilibrium constant for this reaction will be,

Now put all the given values in this expression, we get :

By solving the term 'x', we get :

x = 0.63

Concentration of at equilibrium = 2 x =

Concentration of HI is present at equilibrium is 1.26 M

"the periodic table is arranged in order of atomic number."

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.