Mean Free Path of Gases definitions Flashcards
Mean Free Path of Gases definitions
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Mean Free Path
Average distance a gas particle travels before colliding with another particle. Elastic Collision
Type of collision where total kinetic energy is conserved. Kinetic Molecular Theory
Theory that explains the macroscopic properties of gases in terms of their molecular motion. Ideal Gas Law
Equation of state for a gas, PV = NkBT, relating pressure, volume, and temperature. STP
Standard Temperature and Pressure, 273 K and 1.01 x 10^5 Pascals. Boltzmann Constant
Physical constant relating the average kinetic energy of particles in a gas with the temperature. Oxygen Molecule Radius
Physical size of an oxygen molecule, approximately 1.5 x 10^-10 meters. Volume
Space occupied by gas particles, used in calculating mean free path. Particle Density
Number of particles per unit volume, affecting mean free path. Average Velocity
Mean speed of gas particles, used to calculate time between collisions. Collision Frequency
Rate at which gas particles collide, inversely related to mean free path. Pressure
Force exerted by gas particles per unit area, a factor in the ideal gas law. Temperature
Measure of the average kinetic energy of gas particles, affecting their speed. Lambda
Symbol commonly used to represent mean free path in equations. Nanometer
Unit of length equal to one billionth of a meter, used to express mean free path.
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