GasesIdeal Behaviour of Helium76Choose the best answerHelium behaves very nearly as an ideal gas because:AIt has strong intermolecular attractionsBIts atoms have very large volumeCIt has a high boiling pointDIntermolecular attractions between He atoms are very weak Like 0 Discuss 0Share
GasesBoyle's Law Isotherms77Choose the best answerFor a fixed amount of an ideal gas, why does a Boyle's law isotherm at higher temperature lie farther from the origin?AMolecular mass increasesBNumber of moles increasesCThe gas constant increasesDThe value of PV = nRT is greater Like 0 Discuss 0Share
GasesCelsius and Kelvin Temperature Scales78Choose the best answerThe approximate relationship between Celsius and Kelvin temperature is:AK = °C − 273BK = °C + 273CK = °C × 273DK = °C/273 Like 0 Discuss 0Share
GasesCharles's Law79Choose the best answerA gas under a movable piston is heated from 20°C to 100°C at constant external pressure. Its volume:ADecreasesBIncreasesCRemains constantDBecomes zero Like 0 Discuss 0Share
GasesKelvin Temperature Scale80Choose the best answerLord Kelvin is associated with the introduction of the:ACelsius scaleBAbsolute temperature scaleCFahrenheit scaleDPressure scale Like 0 Discuss 0Share