Question 43
Ava tests four solids, A, B, C and D. She adds each solid to 10 cm³ of water. She measures the temperature of the water at the start. She then stirs the mixture and measures the temperature of the water again. The table shows her results.
| Solid | Initial temperature (°C) | Final temperature (°C) |
|---|---|---|
| A | 20 | 28 |
| B | 20 | 20 |
| C | 15 | 15 |
| D | 20 | 16 |
Which solid went through an endothermic change? Circle the correct answer. A; B; C; D.
| Solid | Initial temperature (°C) | Final temperature (°C) |
|---|---|---|
| A | 20 | 28 |
| B | 20 | 20 |
| C | 15 | 15 |
| D | 20 | 16 |
Which solid went through an endothermic change? Circle the correct answer. A; B; C; D.
