The rate at which a chemical substance reacts is proportional to its _____________________?
Correct answer: D. Active mass
- A. Atomic weight
- B. Molecular weight
- C. Equivalent weight
- D. Active mass
Explanation
The active mass is the effective concentration or activity of a reacting species, and the reaction rate depends on these quantities. Molecular, equivalent, and atomic weights do not directly determine the rate law.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Chemical Reaction Engineering
395 free Chemical Reaction Engineering MCQs from Chemical Engineering, 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 Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Reaction Engineering questions
Considering the endothermic dissociation of CaCO3 in a closed vessel (CaCO3 ⇌ CaO + CO2), the pressure of CO2 increases, if____________________?
Conversion increases with increase in temperature in case of a/an ______________ reaction?
In case of _____________ reactions, the reaction rate does not decrease appreciably as the reaction proceeds?
Which of the following is the most suitable for isothermal operation?
An exothermic reaction takes place in an adiabatic reactor. The product temperature ______________ reactor feed temperature?
The rate of forward reaction, at chemical equilibrium is ______________ the rate of backward reaction?