How would each of the following change the rate of the reaction shown here?
Drag the appropriate items to their respective bins.
Reaction rate increases, reaction rate decreases, or reaction rate doesn’t change
increasing the temperature
adding a catalyst
removing some NO2 (g)
adding 02(g)
increasing the temperature - reaction rate increases
adding a catalyst - reaction rate increases
removing some NO2 (g) - reaction rate decreases
adding O2(g) - reaction rate doesn't change
increasing the temperature - Reaction rate increases
adding a catalyst - Reaction rate increases
removing some NO2 (g) - Reaction rate decreases
adding O2(g) - Reaction rate increases
To determine how each of the following factors would change the rate of the reaction, we need to consider the key principles of reaction kinetics:
1. Increasing the temperature: When the temperature of a reaction increases, it generally leads to an increase in the rate of the reaction. This is because higher temperatures provide more energy to the reacting molecules, allowing them to collide more frequently and with greater energy. As a result, the reaction rate increases.
2. Adding a catalyst: A catalyst is a substance that increases the rate of a chemical reaction by providing an alternative reaction pathway with a lower activation energy. By lowering the energy barrier required for the reaction to occur, a catalyst can significantly increase the rate of reaction. Therefore, adding a catalyst would generally increase the reaction rate.
3. Removing some NO2 (g): In this context, removing some NO2 (g) refers to decreasing the concentration of NO2 in the reactant mixture. The reaction shown does not include any NO2 as a reactant; hence, removing it would not have any effect on the reaction rate. Therefore, the reaction rate doesn't change.
4. Adding O2 (g): The addition of O2 (g) to the reaction mixture might affect the reaction rate depending on the specific details of the reactants and reaction mechanism. Without additional information, it is challenging to determine the exact outcome. In some reactions, adding an oxidizing agent like O2 can increase the reaction rate, while in other cases, it may not have a significant impact. Therefore, the effect of adding O2 (g) on the reaction rate could vary.
Summarizing the effects:
- Increasing the temperature: Reaction rate increases.
- Adding a catalyst: Reaction rate increases.
- Removing some NO2 (g): Reaction rate doesn't change.
- Adding O2 (g): Reaction rate can vary depending on the specific reaction.