MCAT General Chemistry Questions and Answers with Verified Solutions

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STP ✔✔0°C and 1 atm Ideal Gas Law ✔✔PV = nRT At STP, 1 mol of gas will occupy ... ✔✔22.4 L Characteristics of an Ideal Gas ✔✔1. Gas molecules have zero volume 2. Gas molecules exe... rt no forces other than repulsive forces due to collisions 3. Gas molecules make completely elastic collisions 4. The avg. kinetic energy of gas molecules is directly proportional to the temperature of the gas Partial pressure of a gas (equation) ✔✔Partial pressure equals the mole fraction of the gas (number of moles of gas "i" divided by total number of moles of gas in sample) times the total pressure. Average Kinetic Energy (of gas) ✔✔KEavg = (3/2)RT (R = .08206 L atm K⁻¹ mol⁻¹ or 8.314 J K⁻¹ mol⁻¹) Average kinetic energy applies to ALL gases, regardless of mass [Show More]

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