GasesIsothermal Expansion141Choose the best answerDuring isothermal expansion of a fixed amount of an ideal gas: (1) Pressure decreases. (2) Average kinetic energy remains constant. (3) Average kinetic energy decreases. (4) Number of molecules increases.A(1) and (2)B(1), (2) and (4)C(1), (2) and (3)D(2) and (3) Like 0 Discuss 0Share
GasesGas Density142Choose the best answerThe density of an ideal gas is maximum under:ALow temperature and high pressureBHigh temperature and low pressureCHigh temperature and high pressureDLow temperature and low pressure Like 0 Discuss 0Share
GasesCharles's Law143Choose the best answerAt constant pressure, if the Kelvin temperature of a fixed amount of gas is doubled, its volume:ARemains unchangedBBecomes halfCDoublesDBecomes four times Like 0 Discuss 0Share
GasesBoyle's Law Graph144Choose the best answerAt constant temperature, if P is plotted against 1/V for a fixed amount of an ideal gas, the graph is:AA horizontal straight lineBA vertical straight lineCA straight line passing through the originDA rectangular hyperbola Like 0 Discuss 0Share
GasesPressure–Temperature Law145Choose the best answerAt constant volume, increasing the absolute temperature of a fixed amount of gas causes its pressure to:AIncreaseBDecreaseCRemain constantDBecome zero Like 0 Discuss 0Share