A closed system initially containing 1.000 × 10-3 M H2 and 2.000 × 10-3 M I2 at 448℃ is allowed to reach equilibrium. Analysis of the equilibrium mixture shows that the concentration of Hl is 1.87 x 10 -3 M. Calculate Kc at 448 degrees Celsius for the reaction taking place.   Which is H2+ I2 --> 2HI

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