According to Henry’s law, the solubility of a gas in a liquid is directly proportional to which factor?
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A.
Partial pressure of the gas
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B.
Volume of the gas
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C.
Density of the liquid
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D.
Temperature of the liquid
Correct Answer:
A. Partial pressure of the gas
Explanation:
Henry's law states that at a constant temperature, the amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid. Mathematically, this is expressed as C = kP, where C is the concentration of the dissolved gas, k is Henry's law constant, and P is the partial pressure. This relationship indicates that as the pressure of the gas above the liquid increases, more gas molecules are forced into the solution, thereby increasing its solubility. Consequently, the solubility of a gas in a liquid depends directly on the partial pressure of the gas.
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