18 Questions
What is the primary reason Henry's Law is important in a gas dissolved in a liquid?
To calculate the partial pressure of the dissolving gas
What is the result of the presence of a non-volatile solute B in a solution, according to Raoult's law?
It lowers the vapor pressure of the solvent A
What is the unit of the constant K in Henry's Law?
atm-1
What is the effect of the presence of a non-volatile solute on the boiling point of a solution?
It increases the boiling point
What is the relationship between the mole fraction of oxygen in water and its partial pressure, according to Henry's Law?
XO2 = KPgas
What is the effect of the presence of a non-volatile solute on the freezing point of a solution?
It decreases the freezing point
If the pressure of a gas above a liquid is increased, what will happen to the solubility of the gas in the liquid?
It will increase
What is the mole fraction of a gas in a liquid a measure of?
The solubility of the gas in the liquid
If the partial pressure of oxygen in a container is increased, what will happen to its mole fraction in the liquid?
It will increase
If Henry's constant is not constant, what can be inferred?
There is a chemical reaction between the gas and solvent
What is the relationship between the pressure of a gas and its solubility in a liquid, according to Henry's law?
The solubility of the gas is directly proportional to the pressure of the gas
If the total pressure of a gas-liquid system is kept constant, what will happen to the mole fraction of the gas in the liquid if the temperature is increased?
It will decrease
What is the expression for the vapor-pressure lowering of a solvent according to Raoult's law?
ΔP = XP°
What is the effect of dissolving a non-volatile solute in a solvent on the boiling point of the solvent?
The boiling point of the solvent increases.
What is the relationship between the mole fraction of the solute and the freezing point of the solvent?
The freezing point of the solvent decreases with the mole fraction of the solute.
What is the osmotic pressure of a solution?
The pressure exerted by the solution on its surroundings.
What is the unit of vapor pressure?
mmHg
What is the mole fraction of glucose in the solution in the example given?
0.0220
Test your understanding of Henry's Law, which relates the partial pressure of a gas to its solubility in a liquid. Apply the law to solve problems involving gas dissolution and calculate partial pressures. Essential for chemistry and physics students!
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