10 s 20 s 30s 40s 50s

Question

21.3 Celsius 40.3 59.5 62.6 62.9
1. Did the temperature continually rise during the reaction?
2. Is this considered an exothermic or endothermic reaction?
3. Describe an idea of how to maximize the change in energy.

Answer 1

1. Did the temperature continually rise during the reaction?
   Yes, based on the data provided, the temperature increases from 21.3°C at 10 seconds to 62.9°C at 50 seconds, indicating a continual rise in temperature over the time measured.

2. Is this considered an exothermic or endothermic reaction?
   This reaction is considered exothermic. An exothermic reaction releases energy in the form of heat, which is evidenced by the increase in temperature throughout the reaction.

3. Describe an idea of how to maximize the change in energy.
   To maximize the change in energy in an exothermic reaction, you can increase the concentration of reactants to drive the reaction forward. Additionally, ensuring that the reaction has optimal conditions such as temperature, pressure, and the presence of a catalyst can enhance the rate and completeness of the reaction. Furthermore, using more reactive substances or increasing the surface area of solid reactants can also lead to a greater release of energy.