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The Equilibrium Constant for the Reaction Below Is 7

Question 8

Multiple Choice

The equilibrium constant for the reaction below is 7.2 × 10-4 at 298 K and 1 atm.
HNO2(aq) + H2O(l) ⇌ NO2-(aq) + H3O+(aq)
Which of the below statements is TRUE under the following conditions:
[HNO2(aq) ] = 1.0 M and [NO2-(aq) ] = [H3O+(aq) ] = 1.0 × 10-5 M


A) the reaction is at equilibrium
B) the forward reaction is spontaneous
C) the reverse reaction is spontaneous
D) the forward reaction is endothermic
E) the reverse reaction is exothermic

Correct Answer:

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