CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Thermal Equilibrium

When a gas is...

Question

When a gas is in thermal equilibrium, its molecules

A

have the same average kinetic energy.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

have different energies which remains constant.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

have a certain constant energy.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

do not collide with one another.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A have the same average kinetic energy.
When a gas is in thermal equilibrium, the temperature throughout the gas is the same. (Zeroth law of thermodynamics)
The average kinetic energy of the gas molecules is directly proportional to the absolute temperature of the gas. I.e. different sections of the gas will all have the same average kinetic energy.

Suggest Corrections

thumbs-up

0

Similar questions

Q. What will be the average value of energy along one degree of freedom for an ideal gas in thermal equilibrium at a temperature

T

k_{B}

is Boltzmann constant)

Q. When a neutron collides with a quasi-free proton, it loses half of its energy on the average in every collision. How many collisions, on the average, are required to reduce a

2 M e V

neutron to thermal energy df

0.04 e V .

Q. Helium gas is filled in a closed vessel (having negligible thermal expansion coefficient). When it is heated from 300 K to 600 K, then average kinetic energy of helium atom will be :

Q. When an ideal gas is compressed adiabatically, its temperature rises the molecules on the average have more kinetic energy than before. The kinetic energy increases.

Q. Which of the following quantities is zero on an average for the molecules of an ideal gas in equilibrium?
(a) Kinetic energy
(b) Momentum
(c) Density
(d) Speed.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Thermal Equilibrium

PHYSICS

Watch in App

explore_more_icon

Explore more

Thermal Equilibrium

Standard VI Physics

Join BYJU'S Learning Program

CrossIcon