Particle Model & Pressure (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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15 cards from this deck
4 interconnected properties of a gas
4 interconnected properties of a gas
Pressure, temperature, volume, kinetic energy
Relationship between temp & pressure in a gas
Relationship between temp & pressure in a gas
Directly related
Energy transfer when gas temp increases
Energy transfer when gas temp increases
Heat energy transfers to kinetic energy of particles
Equation relating kinetic energy to speed
Equation relating kinetic energy to speed
Effect of increased KE on particle speed
Effect of increased KE on particle speed
Speed increases
Effect of temp increase on avg particle speed
Effect of temp increase on avg particle speed
Average speed rises
Effect of increased particle speed on collisions
Effect of increased particle speed on collisions
More frequent collisions with walls & each other
Why temp increase causes pressure increase
Why temp increase causes pressure increase
Higher KE → higher speed → more collisions → higher pressure
Condition for temp-pressure relationship to hold
Condition for temp-pressure relationship to hold
Volume must remain constant
Pressure-volume relationship (constant temp)
Pressure-volume relationship (constant temp)
Inversely proportional
Equation for pressure-volume relationship
Equation for pressure-volume relationship
Unit for pressure in
Unit for pressure in
Pascals (Pa)
Unit for volume in
Unit for volume in
Cubic metres ()
Definition of work
Definition of work
Energy transferred by a force
Effect of doing work on a gas
Effect of doing work on a gas
Increases internal energy, then increases temperature