Valuate kp for the reaction at temperature

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At a given temperature, 1.40 atm of H2 and 2.03 atm of I2 are mixed and allowed to come to equilibrium. The equilibrium pressure of HI is found to be 1.305 atm. Calculate Kp for the reaction at this temperature.
H2(g) + I2(g) <=> 2 HI(g)

Reference no: EM13165766

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