AP24 Q2 Class 20 (Intro to Kinetics and Reaction Rates)

Front

What are the two most important components necessary for rapid combustion of fuel in an automobile cylinder?

Back

spark plug, fuel injector

Front

How does grinding reactants to fine powders affect reaction rate?

Back

Increases reaction rate because of more collisions.

Front

What is the average rate of appearance of oxygen in the decomposition of H2O2 from 40.0 s to 200.0 s?

Back

0.00022 M/s, 2.2 x 10^-4 M/s

Front

What is the average rate of disappearance of O2 in the reaction N2O(g) + O2(g) → NO2(g) from 100 s to 400 s?

Back

3.35 x 10^-5 M/s, 0.0000335 M/s

Front

Define 'reaction rate'.

Back

The speed at which reactants are converted into products in a chemical reaction.

Front

What factors can affect the rate of a chemical reaction?

Back

Concentration, temperature, surface area, and presence of catalysts.

Front

Explain the role of a catalyst in a chemical reaction.

Back

A catalyst increases the reaction rate by lowering the activation energy required for the reaction.

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

How does temperature affect reaction rates?

Back

Increasing temperature generally increases reaction rates due to higher kinetic energy and more frequent collisions.

Front

What is the relationship between concentration and reaction rate?

Back

Higher concentration of reactants typically leads to an increased reaction rate.