Question

after looking over the results, what could be done to improve the design of the device?
select the correct answer(s).
add more of the compound and see if there is a greater change in temperature.
only use compounds that produce an endothermic process.
only use compounds that produce an exothermic process.
use additional chemicals and record the temperature change, cost, and health risks.
complete more trials.

Explanation:

• Adding more compound only tests quantity, not design improvement.
• Limiting to only endo/exothermic processes restricts flexibility; the device may need either depending on use.
• Testing additional chemicals with multiple factors (temp change, cost, health risks) optimizes design by evaluating more comprehensive criteria.
• More trials improve data reliability, helping refine the device design.

Answer:

D. Use additional chemicals and record the temperature change, cost, and health risks.
E. Complete more trials.