GasesIdeal Gas Equation126Choose the best answerThe ideal gas equation is:APV = RTBPV = nRTCP = RTDV = RT Like 0 Discuss 0Share
GasesMeasurement of Gas Pressure127Choose the best answerWhich instrument is used to measure atmospheric pressure?AThermometerBManometerCBarometerDVoltmeter Like 0 Discuss 0Share
GasesIdeal and Real Gas Behaviour128Choose the best answerHelium shows very small deviation from ideal-gas behaviour mainly because:AIt has very strong intermolecular forcesBIt has very weak intermolecular attractive forcesCIts atoms have very large volumeDIt has a high boiling point Like 0 Discuss 0Share
GasesMolar Volume at STP129Choose the best answerAt STP (273 K and 1 atm), one mole of an ideal gas occupies approximately:A11.2 dm³B22.4 dm³C44.8 dm³D1.0 dm³ Like 0 Discuss 0Share
GasesElastic Collisions130Choose the best answerAn elastic collision between gas molecules means that:ATheir velocities never changeBTotal kinetic energy is conservedCTheir directions never changeDPotential energy remains permanently zero Like 0 Discuss 0Share