For the reaction H2g I2g 2HIg the Kc at 430 oC is 543 The i

For the reaction H2(g) + I2(g) <==> 2HI(g), the Kc at 430 oC is 54.3. The initial concentrations of H2, I2 and HI are 0.00623 M, 0.00412 M and 0.0424 M, respectively. Determine the value of the reaction quotient, Q.

Solution

Q=[HI]²/[H₂][I₂]

Q=0.0424²/(0.00412*0.00623)

Q=70

Here Q is called the reaction quotient