MCQs
1. Henry's law states that the mass of a gas dissolved in a liquid is directly proportional to:
A. Volume of solvent
B. Pressure of the gas
C. Temperature
D. Density of liquid
2. Henry's law is valid at:
A. Constant pressure
B. Constant temperature
C. Constant volume
D. High temperature
3. The units of Henry's law constant are generally:
A. Kelvin
B. Gram
C. atm or bar
D. mole
4. According to Henry's law, if the pressure of a gas increases, its solubility in liquid:
A. Decreases
B. Remains constant
C. Increases
D. Becomes zero
5. Dalton also concluded that solubility of a gas depends on:
A. Temperature
B. Density
C. Partial pressure of gas
D. Molecular weight
6. The Henry's law constant depends on:
A. Nature of gas
B. Nature of solvent
C. Temperature
D. All of these
7. When temperature increases, the solubility of gases in liquids generally:
A. Increases
B. Decreases
C. Remains constant
D. Becomes zero