GasesIntermolecular Forces in Gases46Choose the best answerIn the gaseous state:AIntermolecular attraction dominates thermal energyBThermal energy is generally much greater than intermolecular attractionCThermal energy is zeroDMolecules are fixed in position Like 1 Discuss 0Share
GasesCombined Gas Law47Choose the best answerThe combined gas law is:AP₁V₁/T₁ = P₂V₂/T₂BP₁V₁ = P₂V₂CV₁/T₁ = V₂/T₂DP₁/T₁ = P₂/T₂ Like 0 Discuss 0Share
Gasesvan der Waals Constant a48Choose the best answerThe van der Waals constant a for O₂, N₂, NH₃ and CH₄ is given as 1.360, 1.390, 1.370 and 1.350, respectively. Based only on these values, which gas has the strongest intermolecular attraction?AO₂BN₂CNH₃DCH₄ Like 0 Discuss 0Share
GasesCharles's Law49Choose the best answerCharles's law mainly describes:AChange of gas volume with pressure at constant temperatureBChange of gas volume with temperature at constant pressureCChange of pressure with number of molesDChange of molar mass with temperature Like 0 Discuss 0Share
GasesCompressibility Factor and Negative Deviation50Choose the best answerNegative deviation from ideal behaviour, Z < 1, occurs mainly because of:ARepulsive forcesBAttractive forces between moleculesCZero molecular volumeDComplete absence of intermolecular forces Like 0 Discuss 0Share