In the equation of state of an ideal gas PV = nRT, the value of the universal gas
In the equation of state of an ideal gas PV = nRT, the value of the universal gas constant would depend only on
Options
(a) the nature of the gas (b) the pressure […]
Questions
The pressure and temperature of 4 dm³ of carbon dioxide gas are doubled
The pressure and temperature of 4 dm³ of carbon dioxide gas are doubled. Then the volume of carbon dioxide gas would be
Options
(a) 2 dm³ (b) 3 dm³ (c) 4 dm³ (d) […]
Kinetic theory of gases presumes that collision between the molecules to be perfectly
Kinetic theory of gases presumes that collision between the molecules to be perfectly elastic because
Options
(a) collisions will not split the molecule (b) the molecules are tiny (c) the molecules are rigid […]
Which of the following molecules has the largest root mean square velocity at 25°C
Which of the following molecules has the largest root mean square velocity at 25°C
Options
(a) NH₃ (b) SO₂ (c) H₂S (d) CO₂
Correct Answer:
NH₃
Explanation:
Temperature= 25⁰C, R.M.S velocity (ν r.m.s) […]
A helium, molecule is two times heavier than a hydrogen molecule at 298 K
A helium, molecule is two times heavier than a hydrogen molecule at 298 K. The average kinetic energy of a helium molecule is
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(a) 2 times that of hydrogen molecule (b) half […]
At what pressure a gas, which occupies 100 mL at a pressure of 720 mm
At what pressure a gas, which occupies 100 mL at a pressure of 720 mm, will occupy a volume of 84 mL
Options
(a) 820.20 mm (b) 736.18 mm (c) 857.14 mm (d) […]
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 : […]
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 […]