MDCAT Chemistry MCQ #4275

MDCAT Chemistry MCQ #4275

1. Question 1

   Q1. The partial pressure of a gas in a mixture is

   • A) the pressure exerted by the gas if it alone occupied the total volume
   • B) the total pressure divided by the number of gases
   • C) the pressure exerted by the gas at absolute zero
   • D) the total pressure minus the vapor pressure of other components

   Answer: the pressure exerted by the gas if it alone occupied the total volume

   Explanation: Partial pressure is the pressure a gas would exert if it alone occupied the total volume; Dalton's Law.