simmers123
16.10.2020 •
Chemistry
If there is high gas pressure above a liquid, what can you say about the amount of thermal energy required for the liquid to change to gas? Pls answer quick
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Ответ:
The solution is saturated.
Explanation:
Let´s consider the solubility curve for KBr, which represents the maximum amount of KBr that can be dissolved in 100 g of water at a certain temperature. The solubility of KBr at 100°C is approximately 105 g of KBr every 100 g of water.
The density of water is 1 g/mL. So, 100 g = 100 mL
If we add 220 g of KBr to 100 mL of water, only 105 g of KBr will dissolve and the rest (220 g - 105 g = 115 g) will precipitate. Since the solution has dissolved the maximum amount of solute possible, it is saturated.