GasesIsothermal Process and Kinetic Energy16Choose the best answerWhen an ideal gas expands at constant temperature, the average kinetic energy of its molecules:ADecreasesBRemains constantCIncreasesDBecomes zero Like 0 Discuss 0Share
GasesIdeal Gas Model and Liquefaction17Choose the best answerAn ideal gas cannot be liquefied in the ideal-gas model because:AIts critical temperature is always above 0°CBIt solidifies firstCIts particles are very largeDIntermolecular attractive forces are assumed to be absent Like 0 Discuss 0Share
GasesRoot Mean Square Speed18Choose the best answerFor a given gas, root mean square speed is directly proportional to:ATB√TC1/TDPressure only Like 0 Discuss 0Share
GasesDeviation of Real Gases from Ideal Behaviour19Choose the best answerReal gases show the greatest deviation from ideal behaviour under:AHigh pressure and low temperatureBLow pressure and high temperatureCLow pressure and low temperatureDHigh temperature and very low pressure Like 0 Discuss 0Share
GasesVapour Density and Molar Volume20Choose the best answerAt STP (273 K and 1 atm), 11.2 g of a gas has a vapour density of 11.2. What volume does it occupy?A2.0 LB4.0 LC11.2 LD22.4 L Like 0 Discuss 0Share