- Consider The Following Arbitrary Chemical Reaction And Its Corresponding Energy Profile X2 G 2yz18 2xzg Y2 8 1 (152.88 KiB) Viewed 107 times
Consider the following arbitrary chemical reaction and its corresponding energy profile: X2(g) + 2YZ18) 2XZg) + Y2(8) - TS2 TS1 + ....... + YZ N ...... Energy E 22 =25 kJ/mol E =10 kJ/mol 1 XY (9) +XZQ+YZ g X2 (4) + 2(x) +2YZ 2XZ+Y20 (3) (g) () Reaction coordinate (a) Is this reaction an exothermic or an endothermic reaction? Explain your answer. (2 marks) (6) Propose the two elementary steps for this reaction based on the energy profile and state the intermediate. (4 marks) (c) Given that the transition state 2 (TS2) has a structure similar to that of transition state 1 (TSI), propose a possible structure for TS2. (2 marks) (d) Which elementary step is the rate-determining step (r.d.s)? Explain your answer. (2 marks) (e) Given that the rate constant of this reaction at 25°C is 0.12 M's and the activation energy is 30 kJ/mol, what would be the rate constant when the temperature has increased to 77°C?