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The value of the equilibrium constant for the chemical equation
H2 (g) + I2 (g) <-------> 2HI (g)
is Kp= 85 at 280 degrees Celcius. Calculate the value of Kp at 280 degrees Celcius for the equation
HI (g) <----------> 1/2 H2 (g) + 1/2 I2 (g)
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