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In this quiz, you will find questions related to the Kinetic theory of gases, ideal and real gases, postulates of KTG, etc.
Consider a gas enclosed in a box. A molecule of mass m, having a velocity -2i+3j+4k collides with a wall parallel to the xz plane. What will be its velocity after collision and its change in momentum? i,j & k are unit vectors along the x,y & z axis.
Consider a gas enclosed in a box. Let the walls have an area of 0.01m2. Let’s say a few molecules having their x-component of velocity =2m/s, hit a wall parallel to the yz plane. What will be the value of force on the wall in time dt? Let the number of molecules per unit volume be 10 & mass of each molecule be 10-20kg.
Consider a gas inside a box. It exerts some pressure on its walls. Find this value. GIven that number of molecules per unit volume be 20, mass of each molecule 10-20kg, vx2 = 1m2/s2.
Which of the following is not an assumption of KTG?
The number of molecules per unit volume in the sample is 20. The mass of each molecule is 10-20kg. The mean of speed squared is 4m2/s2. What is the value of internal energy of the gas? Assume volume of container is 0.02m3.
One mole of mono atomic gas (g = 5/3) is mixed with one mole of diatomic gas (g = 7/5) what will be the value of g for the mixture?
A room temperature the r.m.s. velocity of the molecules of a certain diatomic gas is found to be 1930 m/sec. the gas is
The temperature at which the r.m.s. velocity of H² becomes escape velocity from the earth is,
Moon has no atmosphere because
At a certain temperature, hydrogen molecules have r.m.s. velocity of 3 km/s. what is the r.m.s velocity of the oxygen molecules at the same temperature?
When do real gases approach the ideal gas behaviour ?
In kinetic theory of gases, it is assumed that molecules
Have same mass but negligible volume
Have different mass as well as volume
Have same volume but mass can be different
Have same mass but can have different volume
Molecules of a ideal gas behave like
Perfectly elastic rigid sphere
Inelastic non-rigid sphere
Perfectly elastic non-rigid sphere
Inelastic rigid sphere
When a gas is in thermal equilibrium, its molecules
Have the same average kinetic energy of molecules
Have different energies which remain constant
Have a certain constant energy
Do not collide with one another
According to the kinetic theory of gases, the pressure exerted by a gas on the wall of the container is measured as
Rate of change of momentum imparted to the walls per second per unit area
Momentum imparted to the walls per unit area
Change of momentum imparted to the walls per unit area
Change in momentum per unit volume
