Forces controlling the reactions are proportional to the product of the active masses (concentration) of chemicals.The above statement is of:
Correct answer: D. The law of mass action
- A. Raoult's Law
- B. Le Chatelier's Principle
- C. The law of conservation of energy
- D. The law of mass action
Explanation
The correct answer is the law of mass action. This law specifically states that the rate of a chemical reaction is proportional to the product of the concentrations of the reactants, which directly matches the statement given in the question. It is fundamental in determining the equilibrium constant for a reaction. The other options, such as Raoult's Law, Le Chatelier's Principle, and the law of conservation of energy, address different aspects of chemistry like vapor pressures, equilibrium shifts, and energy conservation, none of which are related to the proportional relationship between reaction rates and reactant concentrations.
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About Reversible Reactions
A reversible reaction proceeds in both forward and backward directions, so reactants and products continue changing until dynamic equilibrium is established. The topic covers the meaning of equilibrium, the equality of forward and reverse rates, and how concentration, pressure and temperature disturb equilibrium, which is separate from the rate at which equilibrium is reached.
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