Chemistry

1. the change in Enthalpy of a system when one mole of a substance is completely burnt in oxygen or air at a given temperature
5. the difference between total reactant and total product molar Enthalpy, calculated for substances in their standard status
7. the average kinetic energy of all the atoms or molecules of that substance
10. the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reaction.
11. the amount of heat needed to raise the temperature of 1 gram of a substance 1 degree celsius
12. the heat absorbed by one mole of that substance as it is converted from solid to liquid
16. the heat absorbed by one mole of that substance as it is converted from solid to liquid
17. the ability to do work where work is movement of a body to be some force
18. the amount of energy is neither created nor destroyed
19. the measurement of energy in a thermodynamic system
20. the quality of being hot

2. takes in heat
3. the science of determining the change in energy of a system by measuring the heat exchange of the system with the surrounding
4. the amount of energy needed to warm 1 gram H2O by 1 Celsius
6. the energy stored in chemical bonds of a substance
8. releases heat
9. the energy of motion, observable as the movement of an object or subatomic particles
13. stored energy that depends upon the relative position of various parts of a system
14. an apparatus for measuring the amount of heat involved in a chemical reaction or other process
15. unit of work/energy, in the international system of units; it is equal to the work done by a force of 1 N acting through 1 m