GasesBoyle's Law36Choose the best answerA gas occupies 600 cm³ at 750 mmHg. It is compressed to 500 cm³ at constant temperature. What is the increase in pressure?A150 mmHgB250 mmHgC350 mmHgD450 mmHg Like 0 Discuss 0Share
GasesDeviation of Real Gases from Ideal Behaviour37Choose the best answerReal gases deviate significantly from ideal behaviour at high pressure mainly because:AMolecular volume and intermolecular interactions become significantBMolecules move only in one directionCMolecular volume becomes zeroDIntermolecular forces disappear completely Like 1 Discuss 0Share
GasesRoot Mean Square Speed38Choose the best answerFor a fixed gas, the root mean square speed is proportional to:ATB√TC1/TDT² Like 0 Discuss 0Share
Gasesvan der Waals Volume Correction39Choose the best answerWhy is nb subtracted from V in the van der Waals equation?AThe volume available for molecular motion is less than the container volumeBMolecules have no volumeCGas pressure becomes zeroDTemperature decreases Like 0 Discuss 0Share
GasesReal Gases and van der Waals Equation40Choose the best answerApproximate van der Waals constant a values are: O₂ = 1.36, N₂ = 1.39, NH₃ = 4.17, CH₄ = 2.25. Which gas has the strongest intermolecular attraction and can be liquefied most easily?AO₂BN₂CNH₃DCH₄ Like 0 Discuss 0Share