For a chemical reaction to occur:
Correct answer: C. Reacting molecules must be properly oriented and energy more than or equal to Ea
- A. The vessel shall be open
- B. Reacting molecules should have less energy than Ea at time of collision
- C. Reacting molecules must be properly oriented and energy more than or equal to Ea
- D. The reacting molecules must not collide with each other
Explanation
The amount of energy required for effective collisions is called activation energy which is required for effective collision along with proper orientation.
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
Role of a catalyst in a chemical reaction is to:
The influence of temperature on reaction rate is predicted by:
If the energy of activation of a chemical reaction is very low, the rate of that chemical reaction is observed to be very high because:
Rate of a reaction is dependent on ?
Rate of reaction has :
Specific rate constant changes its value with ?