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The Reaction 2NO(g)+ O2(g) →\rightarrow 2NO2(g)has Δ\Delta Hr ∘\circ = -114 KJ →\rightarrow 2NO2(g)
Slow,k
If the Activation Energy for the Reverse Reaction

Question 35

Multiple Choice

The reaction 2NO(g) + O2(g) →\rightarrow 2NO2(g) has Δ\Delta Hr ∘\circ = -114 kJ.mol-1.A possible mechanism for this reaction is 2NO(g) →N2O2(g)
Rapid equilibrium,K
N2O2(g) + O2(g) →\rightarrow 2NO2(g)
Slow,k
If the activation energy for the reverse reaction is 225 kJ.mol-1,what is the activation energy for the forward reaction?


A) Because an intermediate is involved,the forward activation energy cannot be calculated with the given information.
B) 111 kJ.mol-1
C) 339 kJ.mol-1
D) 114 kJ.mol-1
E) 55.5 kJ.mol-1

Correct Answer:

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