Question

please help with question 22 and 23. showing all work

22. (Apts) A given reaction has rate constant k =3.45 x 102M'sat T-283K. IFE 145kJ/mol, calculate the value of kyat T-303K. 23. (6pts) Given the following reactions: HOOH + HOI+OH HOI + → Iz + OH 20H+ + 2H30* → 4H:0 a. Are there any intermediates? If so, it is/they are: b. Is there a catalyst? If so, it is: c. Write the equation for the overall reaction. 24. (10pts) The data below were obtained for the reaction: 2H2(g) + 2NO → N2() + 2H2O HM INOM 0.420 0.122 0.210 0.122 0.210 10.244 0.105 0.488 Considering this data and showing your work: Rate of appearance of N2 M/s 0.136 10.0339 0.0678 0.0339 a. What is the order of the reaction with respect to [H.]? Ans

Answer 1

22) Using,

log(K2) - log(K1) = E/2.303R [1/T1 - 1/T2]

log(K2) - log(3.45×10^-2) = 145000/2.303×8.314 [1/283 - 1/303]

log(K2) + 1.462 = 7572.93 [0.003335 - 0.003300]

log(K2) = 7572.93×0.000035 - 1.462

log(K2) = -1.1969

K2 = 10^-1.1969 = 0.06355 = 6.35×10^-2 M^-1​​​​ s^-1​​​​​​

23) a) Yes. Intermediate is HOI and OH-

b) No.

c) Net reaction :

HOOH + 2I^- + 2H₃O⁺ -> I ₂ + 4H₂O