Measurement of the amount of dry gas collected over water from volume of moist gas is based on the___________________?
Correct answer: B. Dalton's law of partial pressures
- A. Charle's law
- B. Dalton's law of partial pressures
- C. Avogadro's hypothesis
- D. Boyle's law
Explanation
Gas collected over water is a moist mixture, so its total pressure equals the sum of the dry-gas and water-vapor partial pressures. Subtracting water-vapor pressure to obtain dry-gas pressure is an application of Dalton’s law.
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