Untitled Studyset
Created by alianageraud-tallent
What is the particle model of matter?
Solids: Particles are closely packed and vibrate in fixed positions.
Liquids: Particles are close together but can move past each other.
Gases: Particles are far apart and move rapidly in random directions.
| Term | Definition |
|---|---|
What is the particle model of matter? | Solids: Particles are closely packed and vibrate in fixed positions.
Liquids: Particles are close together but can move past each other.
Gases: Particles are far apart and move rapidly in random directions. |
what is internal energy? | Internal energy is the total energy stored in the particles of a substance
it consists of:
Kinetic energy (movement of particles)
Potential energy (forces between particles) |
How does gas pressure arise? | Gas pressure is caused by particles colliding with the walls of their container. |
What is latent heat? | Latent heat is the energy transferred to a substance during a change of state without changing its temperature. |
What is the latent heat equation? | E=mL |
What is the density equation? | p = m/v |
Describe the density practical. | Measure the mass using a balance.
Measure dimensions with a ruler.
Calculate volume. |
Quick Revision Summary | Pressure: Caused by gas particles colliding with container walls.
Internal Energy: Total kinetic + potential energy of particles.
Latent Heat: Energy for a change of state without a temperature change. |