(a) High pressure and high temperature (b) Low pressure and low temperature (c) Low pressure and high temperature (d) High pressure and low temperature Answer-c (2)
O2 and N2 are 32 and 28 respectively. At 15°C, the pressure of 1 gm O2 will be the same as that of 1 gm N2 in the same bottle at the temperature (a) – 21°C (b) 13°C (c) 15°C …
(a) 1 gm gas (b) Any mass of the gas (c) One gm mol gas (d) One litre gas Answer-c (7)
(a) Pascal’s law (b) Gallusac’s law (c) Dalton’s law (d) None of these Answer-a (10)
(a) V (b) 3 V (c) 2 V (d) V / 2 Answer-c (3)
(a) Less than the initial temperature (b) Equal to the initial temperature (c) More than the initial temperature (d) Less or more than the initial temperature depending on the nature of the gas Answer-a (31)
[P+(a/V2)](V-b)=RT, the dimensions of a are (a) M1L5 T-2 (b) M0 L2 T-1 (c) M1 L3 T-2 …
(a) 1 : 1 (b) 32 : 27 (c) 2 : 1 (d) 16 : 14 Answer-a (5)
(a) 38.85 cm of Hg (b) 21.85 cm of Hg (c) 10.85 cm of Hg (d) 14.85 cm of Hg Answer-c (14)
(a) Temperature become four times at constant pressure (b) Temperature become one fourth at constant pressure (c) Temperature becomes two times at constant pressure (d) Temperature becomes half at constant pressure Answer-a (5)
(a) For any gas under any conditions (b) For some gases under any conditions (c) Only if the temperature is kept constant (d) Only if the density is constant Answer-c (40)
(a) Perfect and of constant mass and temperature (b) Real and of constant mass and temperature (c) Perfect and at constant temperature but variable mass (d) Real and at constant temperature but variable mass Answer-a (4)
(a) Charle’s law (b) Boyle’s law (c) Charle’s law and Boyle’s law (d) None of these Answer-c (5)
(a) d (b) d2 (c) d-2 (d) d-1 Answer-c (7)
(a) Mass of air is negligible (b) Mass of air does not remain constant (c) Air is not perfect gas (d) Pressure inside the balloon is less than that of the atmospheric pressure Answer-b (4)
(a) Boyle temperature (b) Critical temperature (c) Triple point (d) Dew point Answer-c (2)
(a) Below critical temperature (b) Above critical temperature (c) At 100°C (d) At 1000°C Answer-b (6)
(a) The dew point (b) The freezing point (c) The saturation point (d) The critical point Answer-d (5)
(a) CO2 (b) O3 (c) H2 …
(a) Zero (b) One atmospheric pressure (c) P0 × 273 (d) P0 × 76 Answer-a (9)
If Pa,Pb and Va and Vb are their respective pressures and volumes, then which relation is true (a) Pa ≠Pb ; Va = Vb (b) Pa =Pb ; …
(a) 172.6 ml (b) 17.26 ml (c) 192.7 ml (d) 19.27 ml Answer-a (1)
(a) 6 (b) 12 (c) 18 (d) 24 Answer-c (5)
(a) 2 P (b) 3 P (c) 4 P (d) 6 P Answer-c (2)
(a) 0°C (b) 273°C (c) 546°C (d) 136.5°C Answer-b (5)
(a) At high temperature and low pressure (b) At low temperature and high pressure (c) At normal temperature and pressure (d) None of the above Answer-a (54)
(a) Isobaric changes (b) Isothermal changes (c) Isochoric changes (d) Isotonic changes Answer-b (9)
(a) cal/°C (b) J/mol (c) J/mol/K (d) J/kg Answer-c (6)
(a) Inelastic rigid sphere (b) Perfectly elastic non-rigid sphere (c) Perfectly elastic rigid sphere (d) Inelastic non-rigid sphere Answer-c (42)
(a) 81°C (b) 900°C (c) 627°C (d) 450°C Answer-c (8)
The square of the speed of the liquid coming out from the orifice is (g = 10 m/s2) (a) 50 m2/s2 (b) 50.5 m2/s2 (c) 51 m2/s2 (d) 52 m2/s2 Answer-a (34)
The time taken to decrease the level from H1 to H2 will be (a) (A/a)(2/g)[√H1– √H2] (b) √2gh (c) √2gh( H1– H2) …
(a) Remains same (b) Rises (c) Lowers (d) (a), (b) or (c) Answer-b (24)
ρ0 (ρ0 > ρ) . The depth of liquid in the tank is half the length of the rod. The rod is in equilibrium, with its lower end resting on the bottom of the tank. In this position the rod …
(a) (n2h)/[(n+1)2s] (b) h/[(n+1)2s] (c) h/[(n2 +1)s] …
(a) ghρa (b) (2gh)/(ρa) (c) 2ρagh (d) (ρgh)/a Answer-c (19)
1/4 cm2 in its bottom. It is counterpoised in a balance. What is the initial change in the balancing weight when water begins to flow out (a) Increase of 12.5 gm-wt (b) Increase of 6.25 gm-wt (c) Decrease of 12.5 …
(a) 2πL (b) L/√2π (c) L …