State the Arrhenius equation and explain why the rate of a reaction rises steeply with temperature.
Chemical Kinetics
Original Khojo Papers practice question — not from a past board paper.
The activation energy is the minimum extra energy that colliding molecules must have for a reaction to occur. The activated complex is the unstable, high-energy arrangement formed at the top of the energy barrier, from which the reaction may go forward to products or back to reactants.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
A catalyst works by providing a path with a lower activation energy.
From the same topic and chapter, at a similar level.
State the Arrhenius equation and explain why the rate of a reaction rises steeply with temperature.
Chemical Kinetics
What is a zero-order reaction? Give one example and state the unit of its rate constant.
Chemical Kinetics
Distinguish between the order and the molecularity of a reaction.
Chemical Kinetics
The half-life of a first-order reaction is 20 minutes. Calculate its rate constant.
Chemical Kinetics
For a first-order reaction, 50% of the reactant is used up in 10 minutes. What fraction remains after 30 minutes?
Chemical Kinetics
What is the van't Hoff factor, and what values does it take for sodium chloride and for acetic acid in benzene?
Solutions