Thermochemistry Crossword

1. Endothermic reactions _____ energy
4. Heat flows from warmer to _______ object
9. concerned with heat changes that occur during chemical reactions
12. Essentially all chemical reactions and changes in physical state involve either:
13. Average kinetic energy of the particles in matter
17. The products are ______ in energy than the reactants
18. release of heat, or absorption of heat
19. Change in H is_______for an exothermic reaction
20. the amount of heat needed to increase the temperature of an object exactly 1°C
21. Change in H is ________ for an endothermic reaction
23. a measure of the disorder of a system
24. The products are ______ in energy than the reactants
25. release of heat, or absorption of heat
26. Heat flowing into a system from its surroundings

2. Exothermic reactions ____ energy
3. Energy is neither created nor destroyed
4. The device used to measure the absorption or release of heat in chemical or physical processes
5. quantity of heat needed to raise the temperature of 1 g of pure water 1°C.
6. In an endothermic reaction, the systems _____ in temperature, the surroundings ______ in temperature
7. SI Unit of heat and energy
8. Water's specific heat value is very _______
10. Heat flowing out of a system into it’s surroundings
11. the measurement of the heat into or out of a system for chemical and physical processes.
14. The heat content of a system at constant pressure
15. The amount of heat it takes to raise the temperature of 1 g of the substance 1°C
16. In an exothermic reaction, the system _____ in temperature, surroundings ______ in temperature
22. capacity for doing work or supplying heat
24. represented by “q”, is energy that transfers from one object to another, because of a temperature difference between them.