Problem 1
Which one of the following statements is wrong for gases? (a) Gases do not have a definite shape and volume (b) Volume of the gas is equal to volume of container the confining the gas (c) Confirmed gas exerts uniform pressure on the walls of its container in all directions (d) Mass of gas cannot be determined by weighing a container in which it is enclosed
Problem 3
In which of the following pairs, the critical temperature of latter gaseous species is higher than the first? (a) \(\mathrm{CO}_{2}, \mathrm{H}_{2}\) (b) \(\mathrm{H}_{2}, \mathrm{NH}_{3}\) (c) \(\mathrm{NH}_{3}, \mathrm{He}\) (d) \(\mathrm{CO}_{2}, \mathrm{He}\)
Problem 4
The dimensions of pressure are same as that of: (a) Energy (b) Energy per unit volume (c) Force per unit area (d) Force per unit volume
Problem 5
Ideal gas obeying kinetic theory of gases can be liquefied if: (a) \(\mathrm{T}>\mathrm{T}_{\mathrm{c}}\) (b) \(\mathrm{P}>\mathrm{P}\) (c) \(\mathrm{P}>\mathrm{P}_{c}\) and \(\mathrm{T}<\mathrm{T}_{\mathrm{d}}\) (d) It cannot be liquefied at any value of \(\mathrm{P}\) and \(\mathrm{T}\).
Problem 6
Based on kinetic theory of gases, which of the following laws can be proved? (a) Boyle's law (b) Charles law (c) Avogadro's law (d) All of these
Problem 7
According to the kinetic theory of gases, in an ideal gas, between two successive collisions the gas molecules travels: (a) In a circular path (b) In a wavy path (c) In a straight line path (d) With an accelerated velocity
Problem 8
Which of the following law leads us to arrive at the conclusion that 1 g-molecule of each gas at STP occupies a volume of \(22.4 \mathrm{~L}\) ? (a) Dalton's law (b) Law of combining volumes (c) Avogadro's law (d) Boyle's law
Problem 9
\(0.1\) mole of gas absorbs \(41.75 \mathrm{~J}\) of heat, the rise in temperature occurs \(20^{\circ} \mathrm{C}\), the gas must be: (a) Triatomic (b) Diatomic (c) Monoatomic (d) (b) and (c) both
Problem 10
Which pair of the gases diffuses with the same rate at same temperature and pressure? (a) \(\mathrm{CO}\) and \(\mathrm{NO}\) (b) \(\mathrm{NO}_{2}\) and \(\mathrm{CO}\) (c) \(\mathrm{NH}_{3}\) and \(\mathrm{PH}_{3}\) (d) \(\mathrm{NO}^{2}\) and \(\mathrm{C}_{2} \mathrm{H}_{6}^{2}\)
Problem 11
Van der Waals real gas, act as an ideal gas, at which condition? (a) High temperature, low pressure (b) Low temperature, high pressure (c) High temperature, high pressure (d) Low temperature, low pressure
