A Gas Phase Decomposition Reaction

question 87

Multiple Choice

A gas phase decomposition reaction
2AB₃ A₂ + 3B₂
Is exothermic. What can you conclude about the spontaneity of this reaction?

• A) It is non-spontaneous.
• B) Nothing conclusive can be stated without more information.
• C) It is spontaneous.

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Definitions:

Equilibrium Constant

A numerical value that represents the ratio of concentrations of products to reactants at equilibrium, for a reversible chemical reaction.

Equilibrium

A state in which all acting influences are balanced or canceled by equal opposing forces, resulting in a stable system.

Reactants

Ingredients that are present from the start in a chemical reaction, getting used up as they generate the outcome products.

Equilibrium

The state in which both reactants and products are present in concentrations which have no further tendency to change with time, usually in a closed system.