Conversion of reactant into product in unit time is called________________?
Correct answer: A. rate of forward reaction
- A. rate of forward reaction
- B. rate of backward reaction
- C. rate constant
- D. rate co-efficient
Explanation
The conversion of reactants into products per unit time is the rate of the forward reaction, expressed through the decrease in reactant concentration or increase in product concentration per unit time. The rate constant is the proportionality constant in a rate law, not the reaction's changing rate itself. Students may choose rate coefficient because it sounds similar, but it refers to the constant rather than the time-dependent conversion rate.
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About Rate of Reaction
Reaction rate measures the change in concentration of a reactant or product per unit time. Questions connect rate with concentration, temperature, pressure, surface area, catalysts and nature of reactants, and may involve rate laws, reaction order, activation energy and collision theory. Rate describes speed, whereas equilibrium describes the final balance of opposing reactions.
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