Change of state

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  • Change of state
    • Heating a solid will cause it to melt
      • Solid-Liquid
    • Continue heating liquid, liquid will evaporate to a gas
      • Liquid-gas
    • Cooling a gas will cause it to condense
      • Gas-liquid
      • Cooling it further will cause it to freeze
        • Liquid-gas
    • Internal energy is a measure of total energy of all particles
      • Kinetic energy
      • Chemical potential energy
    • Temperature is a measure of the average speed of particles
      • Based on kinetic energy of individual  particles
    • Heating water causes the water molecules to gain kinetic energy and speed up


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