581. Which state of matter has the lowest density ?
A. Gas
B. Liquid
C. Solid
D. Plasma

582. The solid particles only posses_____________________?
A. Translational motion
B. Vibrational motion
C. Rotational motion
D. All of above motions

583. If 1/V is plotted on X-axis and pressure on Y-axis at constant temperature what should appear ________________?
A. Straight line parallel to x-axis
B. Straight line parallel to y-axis
C. Straight line
D. Curve

584. One mole of an ideal gas at 546.5 K under 2 atm pressure has a volume of________________?
A. 22.414 m3
B. 44.828 dm3
C. 22.414 dm3
D. 11.212 cm3

585. Which one is not the partial pressure of oxygen in the lungs ?
A. 0.1526 atm
B. 116 mm of Hg
C. 116 torr
D. 1 atm

586. The kinetic molecular theory of gases was put forward in 1738 by _____________________?
A. Boltzman
B. Maxell
C. Clausius
D. Bernoulli

587. Hydrogen effuses four times more rapidly than volume of an unknown gas molar mass of unknown gas should be_______________?
A. 16 gmol-1
B. 32 gmol-1
C. 48 gmol-1
D. 64 gmol-1

588. The processes of effusion and diffusion are best understand by________________?
A. Daltons law
B. Avogadros law
C. Grahams law
D. Charles law

589. The non-ideal behaviour results chiefly from________________?
A. Intermolecular attraction and infinite volume
B. Elastic collisions and finite volume
C. Intermolecular attractions and finite volume
D. Intermolecular attraction only

590. Linds method is employed for__________________?
A. Separation of gases
B. Expansion of gases
C. Compression of gases
D. Liquefaction of gases