11 Feb 16at 8 AM is alowed with a one time 10% penalty to submitted score. to in

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11 Feb 16at 8 AM is alowed with a one time 10% penalty to submitted score. to instead of 160. mic cyuilibrium. Starting with a special frm of N2O‘ where one of the oxygens was isotopscany labeled An experiment was run to demonstrate that uas is a a the system was then allowed to reach equilibrium. N-N nenm i OT dynamie the forward reaction would simply nun ueni equlibrnum i reached and then cease Undr this condion which of the smuctures belon would be observed for N204 reactions run even after equilibrium is reached. Under this condition which of the structures below would be observed for If the equilibrium IS dynamie the forward and reverse N 047 Put letters in alphabetical order. If none are correct enter NONE. De not put spaces or commas or other e haracters between your answers N-N N-N Submit Arawer Isolopic Labeling: This is group attompt 4 of

Explanation / Answer

a) If the equilibrium is not dynamic, then the forward reaction will move until equilibrium is reached. And after that it will stop, which means that no reverse reaction will start. Equilibrium means that whole of reactant is not consumed. Thus, we will have the reactant in its original structure at equilibrium. So, (A) would be present. But N2O4 undergoes resonance. Here the resonating structure for A is C. So, both A and C would be observed.

b) If the equilibrium is dynamic, which means that reverse reaction will start once it reaches equilibrium. So, we will have A and C. But along with that, B will also be present. Because in product side, we have NO2. If the reaction is moving in reverse direction, then two NO2 will combine to give N2O4. The linkage is between N-N. If both the NO2 has isotopic oxygen while combining, then it would give rise to B. So, answer is A,B,C.

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