ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item RG182001: Measuring an decrease in temperature during a chemical reaction is an indicator that the amount of chemical energy increases.
A student combines Substance X with Substance Y. The two substances react completely to form Substance Z. The student measures a decrease in temperature as the reaction occurs. What happens to the amount of chemical energy during the chemical reaction?
- The amount of chemical energy decreases during the chemical reaction.
- The amount of chemical energy increases during the chemical reaction.
- The amount of chemical energy does not change during the chemical reaction.
- The only way to determine what happens to the amount of chemical energy is to also know the identity of the substances.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 1226 |
4–5 n = 0 | 6–8 n = 638 |
9–12 n = 588 |
Male n = 593 |
Female n = 610 |
English n = 1036 |
Other n = 153 |
|
| A. | 31% | N/A | 26% | 36% | 32% | 30% | 31% | 31% |
| B. | 31% | N/A | 34% | 28% | 29% | 32% | 31% | 33% |
| C. | 18% | N/A | 19% | 18% | 20% | 17% | 19% | 15% |
| D. | 20% | N/A | 21% | 19% | 19% | 20% | 19% | 20% |