Answer to Question #133992 in Physical Chemistry for Adelakun

Question

What is the concentration of HI in the equilibrium below.
H2 + I2 -------+ 2HI , The kc value is 5.43, the concentration of H2 and I2 are 0.500 each respectively. Find the concentrations of H2, I2 and 2HI.

Answer 1

H₂ + I₂-------> 2HI , The kc value is 5.43, the concentration of H2 and I2 are 0.500 each respectively AT EQUILLIBRIUM .

kc = [ HI ]² / [ H₂ ] . [ I₂ ]

[ HI ] ² = 5.43 * ( 0.5 ) * ( 0.5 ) = 1.375 M

So , [ HI ] = 1.16511 M .