Problem 12
The compressibility factor of an ideal gas is (a) 1 (b) 2 (c) 4 (d) 0
Problem 13
The temperature below which a gas can be made to liquefy by variation in pressure is called its (a) inversion temperature (b) critical temperature (c) neutral temperature (d) curie point
Problem 14
By the ideal gas law the pressure of \(0.60 \mathrm{~mol} \mathrm{NH}_{3}\) gas in a \(3.00\) litre vessel at \(25^{\circ} \mathrm{C}\) is (a) \(48.9 \mathrm{~atm}\) (b) \(4.89 \mathrm{~atm}\) (c) \(0.489 \mathrm{~atm}\) (d) \(489 \mathrm{~atm}\)
Problem 15
At what Centigrade temperature will be the volume of a gas at \(0^{\circ} \mathrm{C}\) double of itself, when pressure remains constant? (a) \(0^{\circ} \mathrm{C}\) (b) \(273^{\circ} \mathrm{C}\) (c) \(273 \mathrm{~K}\) (d) \(546 \mathrm{~K}\)
Problem 16
Pressure of a mixture of \(4 \mathrm{~g}\) of \(\mathrm{O}_{2}\) and \(2 \mathrm{~g}\) of \(\mathrm{H}_{2}\) confined in a bulb of \(1.0 \mathrm{~L}\) capacity at \(0^{\circ} \mathrm{C}\) is (a) \(25.18 \mathrm{~atm}\) (b) \(31.205\) atm (c) \(40.215 \mathrm{~atm}\) (d) \(15.210 \mathrm{~atm}\)
Problem 17
A closed container contains equal number of oxygen and hydrogen molecules at a total pressure of \(740 \mathrm{~mm}\). If oxygen is removed from the system then pressure will (a) become double of \(740 \mathrm{~mm}\) (b) become half of \(740 \mathrm{~mm}\) (c) become \(1 / 9\) of \(740 \mathrm{~mm}\) (d) remain unchanged
Problem 18
The volume occupied by \(9.0 \mathrm{~g}\) of nitrogen gas at \(300 \mathrm{~K}\) and \(750 \mathrm{mmHg}\) pressure is (a) \(5.854\) (b) \(6.7432\) (c) \(8.8462\) (d) \(8.0225\)
Problem 19
What are the conditions under which the relation between volume \((\mathrm{V})\) and number of moles \((\mathrm{n})\) of gas is plotted? ( \(\mathrm{P}=\) pressure; \(\mathrm{T}=\) temperature \()\) (a) constant \(\mathrm{P}\) and \(\mathrm{T}\) (b) constant \(\mathrm{T}\) and \(\mathrm{V}\) (c) constant \(\mathrm{P}\) and \(\mathrm{V}\) (d) constant \(\mathrm{n}\) and \(\mathrm{V}\)
Problem 22
7.5 grams of gas occupy \(5.6\) litres of volume at STP. The gas is ......... (Atomic weight of \(\mathrm{C}, \mathrm{N}\), and \(\mathrm{O}\) are 12,14 and 16 respectively) (a) \(\mathrm{NO}\) (b) \(\mathrm{N}_{2} \mathrm{O}\) (c) \(\mathrm{CO}\) (d) \(\mathrm{CO}_{2}\)
Problem 23
A gas diffuses four times as quickly as oxygen. The molar weight of gas is (a) 2 (b) 4 (c) 8 (d) 16
