GasesFree Expansion of an Ideal Gas91Choose the best answerAn ideal gas undergoes free expansion into a vacuum. Its temperature does not decrease because ideal-gas molecules:AAre always above the inversion temperatureBHave no intermolecular attractive forcesCLose kinetic energy during collisionsDPerform maximum external work Like 0 Discuss 0Share
GasesMolar Mass from Ideal Gas Equation92Choose the best answerWhich relations can be used to determine the molar mass M of an ideal gas?AM = mRT/PVBM = PV/mRTCM = dRT/PDBoth A and C Like 0 Discuss 0Share
GasesPressure–Temperature Relationship93Choose the best answerAt constant volume, gas pressure increases with temperature mainly because:AAverage molecular speed increasesBIntermolecular attraction increasesCMolecular mass increasesDContainer volume decreases Like 0 Discuss 0Share
BasicsStoichiometry #Gas Laws#Gases94Choose the best answerAt the same temperature and pressure, which gas sample occupies the least volume?A5 NA H₂B10 NA O₂C2.5 NA CO₂D20 NA N₂O Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Avogadro's Law#Gases95Choose the best answerAt the same temperature and pressure, which sample occupies the greatest volume?A5 N_A molecules of H₂B10 N_A molecules of O₂C2.5 N_A molecules of CO₂D20 N_A molecules of N₂O Like 0 Discuss 0Share