Gasesvan der Waals Constant a126Choose the best answerAmong H₂, He, Cl₂ and SO₂, which gas is expected to have the largest van der Waals constant a?ASO₂BHeCH₂DN₂ Like 0 Discuss 0Share
MDCAT Chemistry Past Paper 2023#Combined Gas Law#Gases127Choose the best answer1 atm of nitrogen is at 25°C. Its pressure has increased to 2 atm at 50°C. Volume will change from 1 dm³ to: (MDCAT 2023)A0.542 dm³B2 dm³C3 dm³D4 dm³ Like 0 Discuss 0Share
GasesElastic Collisions128Choose the best answerCollisions between ideal-gas molecules are considered:AInelastic with loss of kinetic energyBElastic with no net loss of kinetic energyCPartially elasticDCompletely attractive Like 0 Discuss 0Share
GasesMolecular Motions of Gases129Choose the best answerMolecules of a polyatomic gas can exhibit:ATranslational motion onlyBRotational motion onlyCTranslational, rotational and vibrational motionDVibrational motion only Like 0 Discuss 0Share
GasesCombined Gas Law130Choose the best answerWhich change will NOT increase the volume of a fixed amount of gas to four times its initial value?ADoubling both absolute temperature and pressureBIncreasing absolute temperature fourfold at constant pressureCDoubling absolute temperature and halving pressureDReducing pressure to one-fourth at constant temperature Like 0 Discuss 0Share