题目内容
使80℃的硝酸钾饱和溶液冷却到20℃,对可能发生的变化说法正确的是( )
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试题答案
C
| t(℃) | 10 | 20 | 30 | 40 | 60 | 80 |
| S(克/100克水) | 21 | 32 | 46 | 64 | 110 | 170 |
| 温度/℃ | 0 | 20 | 40 | 60 | 80 | 100 | |
| 溶解度 (g/100g水) |
NaCl | 35.7 | 36.0 | 36.6 | 37.3 | 38.4 | 39.8 |
| KNO3 | 13.3 | 31.6 | 63.9 | 110 | 169 | 246 | |
| 温度/℃ | 0 | 20 | 40 | 60 | 80 | 100 | |
| 溶解度 (g/100g水) | NaCl | 35.7 | 36.0 | 36.6 | 37.3 | 38.4 | 39.8 |
| KNO3 | 13.3 | 31.6 | 63.9 | 110 | 169 | 246 | |
| 温度/℃ | 20 | 40 | 60 | 80 | 100 | ||
| 溶解度 (g/100g水) | NaCl | 35.7 | 36.0 | 36.6 | 37.3 | 38.4 | 39.8 |
| KNO3 | 13.3 | 31.6 | 63.9 | 110 | 169 | 246 | |
| 温度/℃ | 20 | 40 | 60 | 80 | 100 | ||
| 溶解度 (g/100g水) | NaCl | 35.7 | 36.0 | 36.6 | 37.3 | 38.4 | 39.8 |
| KNO3 | 13.3 | 31.6 | 63.9 | 110 | 169 | 246 | |