Thermal physics
- Created by: abichicken
- Created on: 24-03-14 18:09
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- Thermal Physics
- Molecular Models
- Solid
- Particles arranged in regular repeating pattern
- Particles vibrate in fixed positions
- Particles arranged in regular repeating pattern
- Gas
- Particles arranged randomly and very far apart
- Moving around randomly in all directions
- Particles arranged randomly and very far apart
- Liquid
- Particles arranged randomly
- Particles close together vibrating but able to move apart from eachother
- Particles arranged randomly
- Solid
- Evaporation and Boiling
- Evaporation is particles moving faster at the surface and escape
- Boiling is when a change of state occurs
- Boyle's Law
- The variation of volume of a gas with applied pressure
- BOYLES LAW IS THE RELATIONSHIP BETWEEN TWO FACTORS --PRESSURE, VOLUME OR TEMPERATURE
- P1 X P2 = P2 + V2
- p1 & v1 = starting pressure and vloume
- p2 & v2 = final pressure and volume
- Charles' Law
- volume1 = volume2 x temperature1 / temperature2
- Where volume1 and temperature1 are the initial temperature and volume, and volume2 and temperature2 are the final volume and temperature.
- volume is measured in metres cubed (m3) and temperature in Kelvin (K).
- volume1 = volume2 x temperature1 / temperature2
- Thermal Expansion
- In solids
- Materials change their sixe when subject to temperature change while pressure Is constant
- The particles vibrate and move more vigorously as energy is given to them by heat
- Materials change their sixe when subject to temperature change while pressure Is constant
- In gases
- When the particles in a gas are heated they gain kinetic energy so move faster
- with the gas moving faster it takes up more space if the gas is free to expand it will
- When the particles in a gas are heated they gain kinetic energy so move faster
- In liquids
- The volume of liquid increases as a result of molecules aing
- In solids
- Specific Heat Capacity
- The SPC of a material is the energy required to raised 1KG of the material by 1C
- SPC= ENERGY TRANSFERRED/ (MASS X TEMPERTURE)
- Brownian Motion
- A random irregular movement of particles
- Caused by collisions with particles with smaller invisible particles
- A random irregular movement of particles
- Molecular Models
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