S. Hydrogen iodide can decompose into hydrogen and jodine gases. IE, initially,

Question

S. Hydrogen iodide can decompose into hydrogen and jodine gases. IE, initially, 0.200 atm of each gas is se in a flask veei- in which direction will the reaction proceed to reach equilibrium? C (forward or Kp 0.016 okda What is the pressure of Ho gas when equilibium is re-established? you can show your work in the above section) -26. *The reaction A + B: equilibrium constants tabulated. C+Dhas been studied at five widely different temperatures and the Equilibrium constant, Ke (at various temperatures) A+B#C+D Ke at T Ke at T Ke at Ts Ke at T Kc at Ts 0.00100 225 1.00 81.0 0.40 At which temperature will there be the maximum amount of products, C and D, produced when equilibrium is established? (A) T, (B) T, (C) T, ((D) Ta (E) T, . What is the pH of a solution with a [H:O'] of 7.4x10* 10 A solution of phenol, used as a general disinfectant, has a p of s.30. What is the hydroxide ion concentration [OH] of this solution?

Explanation / Answer

Ans 5 :

kp for the reaction is given as :

kp = [H2] [I2] / [HI]2

So putting all the values we get :

Kp = (0.200) (0.200) / (0.200)2

kp = 1

Since the value of Kp has come out to be more than that mentioned in the question , the reaction will move in the reverse direction.

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