A real gas most closely approaches the behaviour of an ideal gas at
A real gas most closely approaches the behaviour of an ideal gas at
Options
(a) 15 atm and 200 K (b) 1 atm and 273 K (c) 0.5 atm and 500 K (d) […]
Questions
To which of the followings the Dalton’s law of partial pressure is not applicable
To which of the followings the Dalton’s law of partial pressure is not applicable
Options
(a) H₂ and He (b) NH₃ and HCl (c) N₂ and H₂ (d) N₂ and O₂
Correct Answer: […]
What is the pressure of 64g O₂ enclosed in a cylinder of 20 litres at 27⁰C
What is the pressure of 64g O₂ enclosed in a cylinder of 20 litres at 27⁰C
Options
(a) 2.5 atm (b) 2 atm (c) 2.75 atm (d) 3 atm
Correct Answer:
2.5 atm
The density of methane (CH₄) at 2.0 atmospheric pressure and 27⁰C is
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
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
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
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
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
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
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: […]