Thermochemistry

2. transition of a substance directly from gas to solid
4. energy it takes to go from as to liquid
6. energy it takes to go from liquid to solid
7. the change in of the products from the reactants
11. the study of how heat is converted to and from other forms of energy and how it affects matter
13. a device used to measure the energy absorbed or released as head in a chemical reaction.
14. the temperature and pressure at which the solid, liquid, and gas forms of a substance coexist
16. the total amount of energy; movement
17. energy it takes to go from solid to liquid
18. of a reaction or process accompanied by or requiring the absorption of heat
19. transition of a substance directly from solid to gas
20. the minimum amount of energy that must be applied to a system to initiate a chemical change.

1. a substance that speeds up a chemical reaction without itself undergoing any chemical change.
3. energy it takes to go from liquid to gas
4. Point the point on a phase diagram in which two phases of a substance become indistinguishable from each other, a supercritical fluid.
5. of a reaction or process accompanied by the release of heat
8. the measure of the average kinetic energy of the particles in a sample of matter
9. these phrases changes what energy because bonds are being formed
10. the branch of chemistry concerned with the quantities of heat envoled of absorbed during chemical reactions
12. the amount of heat or energy to raise 1 gram of substance by 1c
15. Biological catalyst that speed up the rate of reactions in the body