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Moderate

Exothermic and High Entropy

APCHEM-1ZG84D

The reaction between natural gas and excess oxygen is both exothermic and shows an increase in entropy.

Which of the following would BEST describe why the reaction has not proceeded to form products at a reasonable rate when a gas stove leaks a large amount of natural gas?

A

The concentration of reactants is so low that no products can be formed.

B

The reaction has reached a state of equilibrium, and no more product will be formed.

C

The activation energy is so high that the initial kinetic energy needed cannot be produced to start the reaction.

D

The two gases do not mix enough to allow for the collision of the molecules that would result in the product being formed, due to the density differences in the gases.