Class 11 Physics simulations · Kinetic Theory

Molecules in motion

Heat a gas and watch its particles move faster inside a container.

Open the simulation

What to notice

Temperature measures average translational kinetic energy, not the speed of a single molecule.

Key relation

vᵣₘₛ = √(3kT / m)

Try this

Keep temperature constant and choose heavier molecules.

What you can change

• Gas temperature: 100 to 900 K
• Molecular mass: 2 to 44 u

More in Kinetic Theory

• Brownian motion
• Equipartition of energy
• Pressure vs temperature
• Maxwell–Boltzmann speed distribution
• Molecular mean free path
• Pressure from molecular collisions

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