P3 Particle Models of Matter
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What is the arrangement and energy of solids?
Arrangement: Strong forces hold the particles close together in a fixed regular pattern Energy: not much, can only vibrate around their fixed points.
What are the arrangements and energy of liquids?
Slightly weaker forces hold the particles close together in an irregular pattern. They can move past each other Energy: more energy than solids, move in random directions at low speeds
What are the arrangements and energy of gas?
Arrangement: no forces between particles, not held together, constantly move Energy: More energy than liquids, they move in random directions at high speeds.
What is specific latent heat?
Is the energy to change 1kg of a state at a constant temperature E = ml
What is the equation for internal energy?
Kinetic + potential
What is the features of cold gas?
Slow particles, softer collisions, low pressure.
What are the features of hot gas?
Faster particles, more frequent and harder collisions, higher pressure.
How is gas pressure caused?
Caused by particles colliding with container walls