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Thermal Equilibrium (Simplified) definitions

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  • Thermal Equilibrium
    A state where substances in contact reach identical temperatures, stopping any further thermal energy exchange.
  • Heat Transfer
    The movement of thermal energy from a higher temperature object to a lower temperature one until balance is achieved.
  • Temperature
    A measure indicating the average kinetic energy of particles, determining the direction of thermal energy flow.
  • Q
    A symbol representing the quantity of heat exchanged, assigned a positive or negative value based on energy gain or loss.
  • Negative Q
    A value indicating that an object is releasing thermal energy to its surroundings or another substance.
  • Positive Q
    A value indicating that an object is absorbing thermal energy from its surroundings or another substance.
  • Mcat
    A shorthand for the product of mass, specific heat, and temperature change, used to calculate heat transfer.
  • Ideal Thermal Equilibrium
    A scenario where all heat exchange occurs only between two substances, with no energy lost to the environment.
  • Final Temperature
    The shared temperature reached by substances in contact after all possible heat transfer has occurred.
  • Hotter Object
    A substance initially at a higher temperature, which loses thermal energy during heat exchange.
  • Colder Object
    A substance initially at a lower temperature, which gains thermal energy during heat exchange.
  • Physical Contact
    A condition required for direct thermal energy exchange between two substances.
  • Heat Lost
    The amount of thermal energy released by a substance, typically assigned a negative value.
  • Heat Gained
    The amount of thermal energy absorbed by a substance, typically assigned a positive value.
  • Surroundings
    Everything external to the system of interest, which may or may not participate in heat exchange.