Across
- 4. reactions that absorb heat are called?
- 7. curve/ usually involves a system in a closed container in order to isolate it from its environment and observe how it changes as it is influenced by the heat.
- 8. if a reaction is reversed the delta h for the reaction must be changes to the _____ sign
- 9. is the study of heat changes during chemical and physical changes
- 11. a reaction that gives off heat?
Down
- 1. is equal to one joule 4.814
- 2. heat/ of a substance tell how much energy is needed temperature of a gram of that substance by 1 c?
- 3. is the type of energy that always flows from warmer objects to cooler ones
- 5. the science or act of measuring changes in state variables of a body for the purpose of deriving the heat transfer associated with changes of its state
- 6. law/ says delta H the reactions are additives
- 10. energy used or produced during a chemical reaction is called?