| 1. | |
| a) | A [0 and 10 minutes] |
| b) | 22 minutes [ 21-23] |
| c) | 70 C |
| d) | 60% |
| 2. | |
| a) | 60kJ |
| b) | 15.55 bars [16] |
| c) | 378 kJ |
| 3. | |
| a) | |
 |
|
| b) | 2550 kWh |
| c) | B [as temperature falls energy used increases] |
| 4. | |
| a) | 35% |
| b) | |
 |
|
| 5. | |
| B [2 & 3] | |
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Science Homework Answer Guides
Hyndland Science Faculty
