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Consider the following reaction: I2(g)+Cl2(g)⇌2ICl(g) Kp= 81.9 at 25 ∘C. Calculate ΔGrxn for the reaction at...

Consider the following reaction:

I2(g)+Cl2(g)⇌2ICl(g)
Kp= 81.9 at 25 ∘C.
Calculate ΔGrxn for the reaction at 25 ∘C under each of the following conditions.

PICl= 2.65 atm ;
PI2= 0.325 atm ;
PCl2= 0.212 atm .

Solutions

Expert Solution

under standard conditions Grex = G0   = -RTlnKp

                                                             G0   = -RTlnKp

                                                                        = -8.314*298*ln81.9   = -10900 J = -10.9KJ/mole

                                                             Grex = G0 + RTlnKp

                                                                             = -10900+ 8.314*298*lnP2ICl/PI2 PCl2

                                                                             = -10900+ 8.314*298*ln(2.65)2/0.325*0.212

                                                                              = +0.48Kj/mole

                                                                             

queen_honey_blossom answered 1 year ago
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