If the ratio of the rates of diffusion of two gases A and B is 4 : 1. Then the ratio
If the ratio of the rates of diffusion of two gases A and B is 4 : 1. Then the ratio of their densities in the same order is
Options
(a) 16 : […]
Chemistry
Which of the following statement is not correct
Which of the following statement is not correct
Options
(a) The units of surface tension are dynes cm⁻¹ (b) The units of viscosity coefficient of a liquid are ”Poise” (c) CsCI crystallizes in […]
The boiling point of water decreases at higher altitudes because
The boiling point of water decreases at higher altitudes because
Options
(a) the atmospheric pressure is low (b) the temperature is low (c) the atmospheric pressure is high (d) the temperature is high
Measurement of the dry gas from the volume of moist gas is based on
Measurement of the dry gas from the volume of moist gas is based on
Options
(a) Boyle’s law (b) Avogadro’s law (c) Gay Lussac’s law (d) Dalton’s law of partial pressure
Correct […]
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) […]
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. […]