_ are units of rate of reaction.
Correct answer: C. mol dm-3 sec-1
- A. mol dm3 sec-1
- B. mol dm3 minute-1
- C. mol dm-3 sec-1
- D. mol dm3 hour-1
Explanation
The correct answer is mol dm-3 sec-1. The rate of reaction is the change in concentration of a reactant or product over time. The units of rate of reaction are moles per cubic decimeter per second (mol dm-3 sec-1). This means that the rate of reaction is the number of moles of reactant or product that are converted per cubic decimeter of solution per second.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Reaction Kinetics
573 free Reaction Kinetics MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Reaction Kinetics questions
What is the effect of decrease in reactants concentration on protium concentration?
What is the speed of rate determining step?
If the energy of the activated complex lies close to energy of reactants, it means that reaction is
_ units are used in place of molar concentration in gas phase reactions.
The rate at any one instant during the intervals is called as
At the start of chemical reaction, the instantaneous rate is _ than average rate.