Thermochemistry Vocabulary

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  1. 4. amount of heat absorbed or released when exactly 1 mol of a compound is formed from its constituent elements under standard conditions
  2. 6. amount of heat energy required to convert exactly 1 mol of substance from liquid to gas at boiling point
  3. 7. states that if a chemical reaction occurs in multiple steps, total enthalpy change for the overall reaction is the sum of the enthalpy changes for each step
  4. 14. physical property that measures the average kinetic energy of the particles within a substance
  5. 16. specific, defined part of the universe under observation/study
  6. 18. energy stored within chemical bonds and structural arrangements of atoms and molecules
  7. 19. amount of heat energy required to raise the temperature of a unit of mass of a substance by 1 ° C or Kelvin
  8. 20. amount of heat energy required to melt exactly 1 mol of substance at its melting point
  9. 22. reaction or phase change that releases energy into surroundings
  10. 23. total amount of energy absorbed or released when exactly 1 mol of a solute dissolves in a solvent
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  1. 1. total amount of heat energy absorbed or released during a chemical reaction
  2. 2. exact amount of thermal energy released by exactly 1 mol of substance as it converts from liquid to solid at constant freezing point and pressure
  3. 3. amount of heat energy released when 1 mol of a substance transitions from gas to liquid at constant temperature and pressure
  4. 5. amount of heat absorbed or released by a system during chemical reaction or physical process
  5. 8. thermodynamic property that measures total heat of a system
  6. 9. unit of energy defined as the amount of heat energy required to raise the temperature of 1g of water by 1 ° C
  7. 10. experimental process of measuring the heat released or absorbed during a chemical reaction or physical change
  8. 11. everything outside specific system being studied
  9. 12. transfer of thermal energy between a system and its surroundings due to a temperature difference
  10. 13. standard International System of Units measurement for energy, work, heat
  11. 15. capacity to do work or supply heat
  12. 17. energy a substance possesses due to the motion of its particles
  13. 21. branch of chemistry that studies the heat energy associated with chemical reactions and physical phase changes
  14. 24. chemical or physical process that absorbs energy from surroundings