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# Absolute Zero

### cava 303 s2d10 1.11 Absolute Zero

[M-] of gas molecules account for the properties of gases. Motions of gas molecules account for the properties of gases.
Pressure: the combined forces of the [...] between gas particles and the walls of the container Pressure: the combined forces of the collisions between gas particles and the walls of the container
Temperature: the measure of molecular [...] Temperature: the measure of molecular motion (average kinetic energy)
Volume: the moving gas molecules occupy [...] Volume: the moving gas molecules occupy space
Movement energy is called [...] Energy Movement energy is called Kinetic Energy
When you heat particles, they move [-er], thus they have more kinetic energy When you heat particles, they move faster, thus they have more kinetic energy
Temperature is a measure of the average [...] energy of the molecules in a system. Temperature is a measure of the average kinetic energy of the molecules in a system.
Lord [...] introduced absolute zero. Lord Kelvin introduced absolute zero.
Kelvin reasoned that there must be a temperature at which average kinetic energy is [...] and all motion stops. He called this temperature absolute zero. Kelvin reasoned that there must be a temperature at which average kinetic energy is zero and all motion stops. He called this temperature absolute zero.
Nothing can be colder than absolute zero because temperature is a measure of motion, and all motion (atomic, molecular) [...] at absolute zero. Nothing can be colder than absolute zero because temperature is a measure of motion, and all motion (atomic, molecular) ceases at absolute zero.
Gas law problems must use the [...] (absolute) temperature scale. Gas law problems must use the Kelvin (absolute) temperature scale.
There are no [n-] measurements possible in Kelvin. There are no negative measurements possible in Kelvin.
Kelvin is always a [-er] number than the equivalent Celsius. Kelvin is always a bigger number than the equivalent Celsius.
The Kelvin and Celsius scales are exactly the same, except for that fact that [...] is in the right place on the Kelvin scale. The Kelvin and Celsius scales are exactly the same, except for that fact that zero is in the right place on the Kelvin scale.
K = °C [...] 273 K = °C + 273
°C = K [...] 273 °C = K – 273
Created by: mr.shapard