Chapter 12 – Kinetic Theory of Gases
Sahay Sir > Question Answers > NCERT Exemplar Class 11 > Physics > Chapter 12 - Kinetic Theory of Gases
At what temperature is the root mean square speed of an atom in an argon gas cylinder equal to the rms speed of a helium gas atom at – 20 °C? (atomic mass of Ar = 39.9 u, of He = 4.0 u).
13
Sep
At what temperature is the root mean square speed of an atom in an argon gas cylinder equal to the rms speed of a helium gas atom at – 20 °C? (atomic mass of Ar = 39.9 u, of He = 4.0 u). At what temperature is the root mean square speed of an atom [...]
Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains neon (monatomic), the second contains chlorine (diatomic), and the third contains uranium hexafluoride (polyatomic). Do the vessels contain equal number of respective molecules? Is the root mean square speed of molecules the same In the three cases? If not, in which case is Vrms the largest?
13
Sep
Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains neon (monatomic), the second contains chlorine (diatomic), and the third contains uranium hexafluoride (polyatomic). Do the vessels contain equal number of respective molecules? Is the root mean square speed of molecules the same In the three cases? If [...]
Tags:
and the third contains uranium hexafluoride (polyatomic). Do the vessels contain equal number of respective molecules? Is the root mean square speed of molecules the same In the three cases? If not ,
in which case is Vrms the largest? ,
the second contains chlorine (diatomic) ,
Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains neon (monatomic) ,
From a certain apparatus, the diffusion rate of hydrogen has an average value of 28.7 cm^3 s−1. The diffusion of another gas under the same conditions is measured to have an average rate of 7.2 cm^3 s−1. The gas is
13
Sep
From a certain apparatus, the diffusion rate of hydrogen has an average value of 28.7 cm^3 s−1. The diffusion of another gas under the same conditions is measured to have an average rate of 7.2 cm^3 s−1. The gas is From a certain apparatus the diffusion rate of hydrogen has an average value of 28.7 [...]
Estimate the average thermal energy of a helium atom at (i) room temperature (27 °C), (ii) the temperature on the surface of the Sun (6000 K), (iii) the temperature of 10 million Kelvin (the typical core temperature in the case of a star).
13
Sep
Estimate the average thermal energy of a helium atom at (i) room temperature (27 °C), (ii) the temperature on the surface of the Sun (6000 K), (iii) the temperature of 10 million Kelvin (the typical core temperature in the case of a star). (ii) the temperature on the surface of the Sun (6000 K) (iii) [...]
Estimate the total number of air molecules (inclusive of oxygen, nitrogen, water vapour and other constituents) in a room of capacity 25.0 m^3 at a temperature of 27 C and 1 atm pressure.
13
Sep
Estimate the total number of air molecules (inclusive of oxygen, nitrogen, water vapour and other constituents) in a room of capacity 25.0 m^3 at a temperature of 27 C and 1 atm pressure. Estimate the total number of air molecules (inclusive of oxygen nitrogen water vapour and other constituents) in a room of capacity 25.0 [...]
An air bubble of volume 1.0cm 3 rises from the bottom of a lake 40 m deep at a temperature of 12 ∘C. To what volume does it grow when it reaches the surface which is at a temperature of 35 ∘C ?
13
Sep
An air bubble of volume 1.0cm 3 rises from the bottom of a lake 40 m deep at a temperature of 12 ∘C. To what volume does it grow when it reaches the surface which is at a temperature of 35 ∘C ? An air bubble of volume 1.0cm 3 rises from the bottom of [...]
An oxygen cylinder of volume 30 litres has an initial gauge pressure of 15 atm and a temperature of 27 °C. After some oxygen is withdrawn from the cylinder, the gauge pressure drops to 11 atm and its temperature drops to 17 °C. Estimate the mass of oxygen taken out of the cylinder (R = 8.31 J mol–1 K–1 , molecular mass of O2 = 32 u).
13
Sep
An oxygen cylinder of volume 30 litres has an initial gauge pressure of 15 atm and a temperature of 27 °C. After some oxygen is withdrawn from the cylinder, the gauge pressure drops to 11 atm and its temperature drops to 17 °C. Estimate the mass of oxygen taken out of the cylinder (R = [...]
Tags:
An oxygen cylinder of volume 30 litres has an initial gauge pressure of 15 atm and a temperature of 27 °C. After some oxygen is withdrawn from the cylinder ,
molecular mass of O2 = 32 u). ,
the gauge pressure drops to 11 atm and its temperature drops to 17 °C. Estimate the mass of oxygen taken out of the cylinder (R = 8.31 J mol–1 K–1 ,
Molar volume is the volume occupied by 1 mol of any (ideal) gas at standard temperature and pressure (STP : 1 atmospheric pressure, 0 C). Show that it is 22.4 litres.
13
Sep
Molar volume is the volume occupied by 1 mol of any (ideal) gas at standard temperature and pressure (STP : 1 atmospheric pressure, 0 C). Show that it is 22.4 litres. 0 C). Show that it is 22.4 litres. Molar volume is the volume occupied by 1 mol of any (ideal) gas at standard temperature [...]
Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take the diameter of an oxygen molecule to be 3A˚.
13
Sep
Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take the diameter of an oxygen molecule to be 3A˚. Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take the diameter of an oxygen molecule to be 3A˚. September 13, 2021 [...]