Across
- 3. absorbs heat from the surroundings
- 11. the heat absorbed by one mole of a solid substance as it melts to a liquid at a constant temperature
- 13. the heat lost when one mole of a liquid solidifies at a constant temperature
- 17. one that releases heat to its surroundings
- 18. the heat of reaction for the complete burning of one mole of a substance
- 19. include everything else in the universe
- 21. the heat content of a system at constant pressure
Down
- 1. the insulated device used to measure the absorption or release of heat in chemical or physical processes
- 2. the amount of heat necessary to vaporize one mole of a given liquid
- 4. states that if you add two or more thermochemical equations to give a final equation, then you can also add the heats of reaction to give the final heat of reaction
- 5. a chemical equation that includes the enthalpy change
- 6. the energy stored in the chemical bonds of a substance
- 7. represented by q, is energy that transfers from one object to another because of a temperature difference between them
- 8. the enthalpy change for the chemical equation exactly as it is written
- 9. the precise measurement of the heat flow into or out of a system for chemical and physical processes
- 10. the change in enthalpy that accompanies the formation of one mole of a compound from its elements with all substances in their standard states at 25 degrees Celsius
- 11. the enthalpy change caused by dissolution of one mole of a substance
- 12. the amount of heat released when 1 mol of vapor condenses at the normal boiling point
- 14. the study of energy changes that occur during chemical reactions and changes in state
- 15. the amount of heat it takes to raise the temperature of 1g of the substance 1 degree Celsius
- 16. the amount of heat needed to increase the temperature of an object exactly 1 degree Celsius
- 20. the part of the universe on which you focus your attention