Consider this equilibrium: cocl2(g) co(g) + cl2(g) keq = 8.1 x 10-4. what is true for this system? [cocl2] < [co][cl2] [cocl2] = [co][cl2] [cocl2] > [co][cl2]

Answer is: [COCl₂] > [CO][Cl₂].

Chemical reaction: COCl₂(g) ⇄ CO(g) + Cl₂(g); Keq = 8.1 x 10⁻⁴.

Keq = [CO] · [Cl₂] / [COCl₂]; equilibrrium constant of chemical reaction.

[CO] · [Cl₂] / [COCl₂] = 0.00081.

Equilibrium product concentration is much more less than equilibrium concentration of reactant.

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when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml