GasesCombined Gas Law96Choose 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
GasesKinetic Energy of Gases97Choose the best answerAt what temperature will the total kinetic energy of 0.3 mol He equal that of 0.4 mol Ar at 400 K?A400 KB300 KC346 KD533 K Like 0 Discuss 0Share
GasesReal Gases and van der Waals Equation98Choose the best answerGases show significant deviation from ideal behaviour at high pressure mainly because:AIntermolecular forces and molecular volume become significantBGas molecules begin to move only in one directionCThe actual volume of gas molecules becomes zeroDIntermolecular forces become completely negligible Like 1 Discuss 0Share
GasesCompressibility Factor99Choose the best answerFor an ideal gas, the compressibility factor Z is:ALess than 1BGreater than 1CEqual to 1DEqual to 0 Like 0 Discuss 0Share
GasesCharles's Law100Choose the best answerA gas is enclosed under a movable piston. If its temperature is increased from 20°C to 100°C while external pressure remains constant, its volume will:ADecreaseBRemain unchangedCIncreaseDBecome zero Like 0 Discuss 0Share