13.Rate of reaction, when concentration of reactants are taken as unity is called
Correct answer: C. (c) Specific rate constant
- A. (a) Arrhenius constant
- B. Molecularity
- C. (c) Specific rate constant
- D. (d) Ideal rate constant
Explanation
The correct answer for the rate of reaction when the concentrations of reactants are taken as unity is:(c) Specific rate constantHere's why the other options are incorrect:(a) Arrhenius constant: This refers to the pre-exponential factor in the Arrhenius equation, not the specific rate constant at a given temperature.(b) Molecularity: This relates to the number of reactant molecules involved in a single elementary reaction step, not the overall rate of the reaction with individual concentrations at unity.(d) Ideal rate constant: This term is not commonly used in chemical kinetics. The specific rate constant is the more established and widely accepted term for the rate of a reaction when reactant concentrations are 1 M.
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About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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