Given that the reaction 2 H 2 (g) + O 2 (g) → 2 H 2 O(g) is exothermic, which of the following is true of the reaction 2 H 2 O(g) → 2 H 2 (g) + O 2 (g) ?

The reverse reaction of an exothermic reaction is endothermic, requiring more energy to overcome the energy barrier, hence a higher activation energy.

Given that the reaction 2 H 2 (g) + O 2 (g) → 2 H 2 O(g) is exothermic, which of the following is true of the reaction 2 H 2 O(g) → 2 H 2 (g) + O 2 (g) ?

The reverse reaction of an exothermic reaction is endothermic, requiring more energy to overcome the energy barrier, hence a higher activation energy.

Solved

Given That the Reaction 2 H₂(g) + O₂(g) → 2

Question 39

Multiple Choice

Given that the reaction 2 H₂(g) + O₂(g) → 2 H₂O(g) is exothermic, which of the following is true of the reaction 2 H₂O(g) → 2 H₂(g) + O₂(g) ?

A) Its activation energy is lower than that of 2 H₂(g) + O₂(g ) → 2 H₂O(g) .
B) Its activation energy is the same as that of 2 H₂(g) + O₂(g ) → 2 H₂O(g) .
C) Its activation energy is higher than that of 2 H₂(g) + O₂(g ) → 2 H₂O(g) .
D) There is no relationship between its activation energy and that of 2 H₂(g) + O₂(g ) → 2 H₂O(g) .