§14.1 The ideal gas 1. Newton's model of gas-static model The corpuscular particles of gas occupy fixed positions and filled the entire space between them Repel force F 1/r2→V个,Pc1/↓ 2. Kinetic model (Daniel Bernoulli, James Clerk Maxwell. Ludwig Boltzmann and others) Ogas is composed of many tiny particles, freely moving at high speed §14.1 The ideal gas @the pressure arises from the innumerable collisions of particles with each other and with the walls of the container. The pressure of a gas in thermal equilibrium inside a container never runs down or decreases with time the collisions must be modeled as completely elastic, the motion Is perpetua B The forces involved in the collisions of th particles of the gas with each other and with walls of the container must conservative briefly acting only during the intervals of the collisions and essentially zero otherwise.2 §14.1 The ideal gas 1. Newton’s model of gas—static model The corpuscular particles of gas occupy fixed positions and filled the entire space between them. Repel force F ∝ 1 r ⇒V ↑, P ∝ 1 V ↓ 2 2. Kinetic model (Daniel Bernoulli, James Clerk Maxwell, Ludwig Boltzmann and others) 1gas is composed of many tiny particles, freely moving at high speed. 2the pressure arises from the innumerable collisions of particles with each other and with the walls of the container. The pressure of a gas in thermal equilibrium inside a container never runs down or decreases with time, the collisions must be modeled as completely elastic, the motion is perpetual. 3 The forces involved in the collisions of the particles of the gas with each other and with walls of the container must conservative, briefly acting only during the intervals of the collisions and essentially zero otherwise. §14.1 The ideal gas