Thermochemistry

7. a reaction that releases heat
9. energy that a body possesses by virtue of being in motion
10. the degree or intensity of heat present in a substance or object
11. the amount of energy needed to change one mole of a substance from the liquid phase to the gas phase at constant temperature and pressure
15. energy can be neither created nor destroyed, but can change form
17. a form of energy arising from the random motion of the molecules of bodies, which may be transferred by conduction, convection, or radiation
18. a reaction that absorbs heat
19. an apparatus for measuring the amount of heat involved in a chemical reaction
20. a thermodynamic quantity equivalent to the total heat content of a system

1. the energy needed to raise the temperature of 1 gram of water through 1°C
2. the change in the enthalpy of a chemical reaction that occurs at a constant pressure
3. the heat required to raise the temperature of the unit mass of a given substance by a given amount
4. a form of potential energy that can be absorbed or released during a chemical reaction
5. an apparatus for measuring the amount of heat involved in a chemical reaction
6. power derived from the utilization of physical or chemical resources
8. the enthalpy change which occurs when one mole of the compound is burned completely in oxygen under standard conditions, and with everything in its standard state
12. the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
13. the amount of heat required to melt one mole of a solid at its melting point with no change in temperature
14. the SI unit of work or energy
16. the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions