The unit of 1st order rate constant are :
Correct answer: B. Sec-¹
- A. Sec
- B. Sec-¹
- C. Mol dm-³sec-¹
- D. None of the above
Explanation
Because the units of the reaction rate are always moles per liter per second, the units of a first-order rate constant are reciprocal seconds (s−1).
Last updated
About Rate Constant
The rate constant, k, connects reaction rate with reactant concentrations in a rate law and has a value fixed for a particular reaction at a given temperature. Questions involve determining k from rate data, identifying its units for different reaction orders, and applying the Arrhenius equation to temperature changes.
Practise Reaction Kinetics
573 free Reaction Kinetics MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
Final equation for the representation of rate of reaction in term of concentration is called
If the concentration of reactants in a chemical reaction is unity, then the rate is called:
It is not a property of rate constant:
Ostwald's dilution law applicable to:
Rate of reaction when concentration of reactants are taken as unity is called_________________?