Question 5 (6 points)
The rate of a reaction is the speed in which reactants are converted into products. The rate of a reaction can be influenced by concentration of reactants, surface area of reactants, temperature, and the use of a catalyst. Look at each scenario below and decide if the rate of the reaction will be increased or decreased.
Column A
1.
The temperature of the reaction is decreased.:
The temperature of the reaction is decreased.
2.
The reactant concentration is decreased.:
The reactant concentration is decreased.
3.
The reactant concentration is increased.:
The reactant concentration is increased.
4.
A catalyst is added to the reaction and the activation energy is lowered.:
A catalyst is added to the reaction and the activation energy is lowered.
5.
The temperature of the reaction is increased.:
The temperature of the reaction is increased.
6.
The surface area of the reactant is increased by grinding it into smaller pieces.:
The surface area of the reactant is increased by grinding it into smaller pieces.
Column B
a.Reaction rate will decrease. The reaction will proceed at a slower rate.
b.Reaction rate will increase. The reaction will proceed at a faster rate.
1. Column B: a. Reaction rate will decrease. The reaction will proceed at a slower rate.
2. Column B: a. Reaction rate will decrease. The reaction will proceed at a slower rate.
3. Column B: b. Reaction rate will increase. The reaction will proceed at a faster rate.
4. Column B: b. Reaction rate will increase. The reaction will proceed at a faster rate.
5. Column B: b. Reaction rate will increase. The reaction will proceed at a faster rate.
6. Column B: b. Reaction rate will increase. The reaction will proceed at a faster rate.