Motion of Particles (Grade 11 NSC Matric Physical Sciences): Flashcards
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Kinetic theory of gases
Kinetic theory of gases
Matter is tiny particles with energy, moving at various speeds
Gas particle size vs distances between them
Gas particle size vs distances between them
Extremely small compared to distances separating them
Why gas particles are in constant motion
Why gas particles are in constant motion
They possess kinetic energy
Type of collisions in kinetic theory
Type of collisions in kinetic theory
Elastic (total kinetic energy unchanged)
What temperature measures in gases
What temperature measures in gases
Average kinetic energy of gas particles
Definition of pressure in gases
Definition of pressure in gases
Measure of frequency of particle collisions with walls
Three characteristics of ideal gas
Three characteristics of ideal gas
Zero volume particles, no forces, identical speeds
When real gases deviate from ideal behaviour
When real gases deviate from ideal behaviour
At high pressures and low temperatures
Why real gas pressure higher at high pressure
Why real gas pressure higher at high pressure
Molecule volumes significant, reducing space, more collisions
Why real gas pressure lower at low temperature
Why real gas pressure lower at low temperature
Attractive forces reduce movement and collision frequency