Chemistry Vocab

2. states that regardless of the multiple stages or steps of a reaction, the total enthalpy change for the reaction is the sum of all changes
4. power derived from the utilization of physical or chemical resources, especially to provide light and heat
5. the process of measuring the amount of heat released or absorbed during a chemical reaction
6. the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions
9. the process or result of joining two or more things together to form a single entity
11. the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
13. A unit of energy in the SI system. One joule is 1 kg. m2/s2 which is also 0.2390 calorie
14. energy that an object possesses by virtue of being in motion
16. a thermodynamic quantity equivalent to the total heat content of a system
19. a reaction or process accompanied by the release of heat
20. energy stored in the chemical bonds of a substance

1. energy cannot be created or destroyed, it can only be transformed from one form to another
3. the degree or intensity of heat present in a substance or object
7. of a reaction or process accompanied by or requiring the absorption of heat
8. a phase transition from the liquid phase to vapor
10. an apparatus for measuring the amount of heat involved in a chemical reaction or other process
12. the energy needed to raise the temperature of 1 gram of water through 1 °C
15. the measure of bond strength in a chemical bond
17. a form of energy associated with the movement of atoms and molecules in any material
18. heat the heat required to raise the temperature of the unit mass of a given substance by a given amount