The density of methane (CH₄) at 2.0 atmospheric pressure and 27⁰C is
Options
(a) 1.30 gL⁻¹ (b) 0.13 gL⁻¹ (c) 0.26 gL⁻¹ (d) 26.0 gL⁻¹
Correct Answer:
1.30 gL⁻¹
Explanation:
Ideal gas equation […]
If the gas at constant temperature and pressure expands, then its
Options
(a) internal energy increases (b) internal energy remains the same (c) internal energy decreases (d) entropy increases and then decreases
Correct […]
A certain mass of gas occupies a volume of 300 c.c. at 27⁰C and 620 mm pressure.The volume of this gas at 47⁰C and 640 mm pressure will be
Options
(a) 400 c.c. […]
The gas molecules have r.m.s. velocity of its molecules as 1000 m/s. What is its average velocity
Options
(a) 546 m/s (b) 921.58 m/s (c) 1012 m/s (d) 960 m/s
Correct Answer:
921.58 […]
The smell of agarbati, mixed in the atmosphere , is due to
Options
(a) evaporation (b) diffusion (c) osmosis (d) condensation
Correct Answer:
diffusion
Explanation:
Diffusion is the ability of a […]
A liquid is in equilibrium with its vapour at its boiling point.The molecules in the two phases have equal
Options
(a) kinetic energy (b) total energy (c) potential energy (d) intermolecular energy
Correct […]
At 27⁰C average kinetic energy of one mole of helium gas can be given
Options
(a) 3741.30 J mol⁻¹ (b) 374.13 J mol⁻¹ (c) 1662.8 J mol⁻¹ (d) 166.28 J mol⁻¹
Correct Answer: […]
A gas has a vapour density 11.2.The volume occupied by 1 g of gas at NTP is
Options
(a) 1 litre (b) 11.2 litre (c) 22.4 litre (d) unpredictable
Correct Answer:
1 litre
Kinetic energy of one mole of an ideal gas at 300 K is
Options
(a) 3.48 kJ (b) 3.74 kJ (c) 37.4 kJ (d) 34.8 kJ
Correct Answer:
3.74 kJ
Explanation:
Kinetic energy […]
A gas such as carbon monoxide would be most likely to obey the ideal gas law at
Options
(a) low temperatures and high pressures (b) high temperatures and high pressures (c) low temperatures and […]
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