Reaction Kinetics

Chemical kinetics is the study of the ​ (a)   , the ​ (b)   that affect these rates, and the ​ (c)   by which reactions occur.

• rates of chemical reactions
• factors
• reaction mechanisms

The rate of reaction is the ​ (a)   in the concentration of a reactant or product per unit of ​ (b)  

• change
• time.
• increase
• mass
• pressure

2N₂O₅(g) → 4NO₂(g) + O₂(g)

differential rate equation of following reaction is

Higher concentration of reactant molecules leads to ​ (a)   presence per unit volume.

• more particles
• less particles
• high temperature
• high bonding

​ (a)   in frequency of collision, results in higher pressure​

• Increase
• decrease
• minimise
• combine

The higher the pressure, the ​ (a)   the rate of reaction.

• higher
• lower
• better
• smaller

The smaller the size of reacting particles, the bigger the ​ (a)   for reaction.

• total surface area exposed
• molecule
• total number of atom

Best statement for catalyst

• substance that changes the rate of a reaction without itself being used up.

• substance that need more if you want the reaction speed more

• substance that not involve in the reaction

• substance must be high for better reaction

Catalyst will increase the rate of reaction by ​ (a)   that has lower ​ (b)   .

• providing alternative pathway
• activation energy
• increase the collision
• concentration

Effective collision must....

• collide with correct orientation

• Collide with sufficient energy

• collide with better sound

• collide with better surrounding