section 16 concepts recap
Across
- 2. the amount of energy required to raise the temperature of one gram of a substance by one degree Celsius (1°C) or one kelvin (1 K)
- 4. a measure of the average kinetic energy of the particles in a sample of matter
- 6. the study of the transfers of energy as heat that accompany chemical reactions and physical changes
- 9. The energy absorbed or released as heat in a chemical or physical change is measured in
- 11. the amount of energy absorbed by a system as heat during a process at constant pressure
- 13. a measure of the degree of randomness of the particles, such as molecules, in a system
- 14. the energy transferred between samples of matter because of a difference in their temperatures
- 16. the SI unit of heat as well as all other forms of energy
- 17. enthalpy change that occurs during the complete combustion of one mole of a substance
Down
- 1. combined enthalpy-entropy function
- 3. enthalpy change that occurs when one mole of a compound is formed from its elements in their standard state at 25ºC and 1 atm
- 5. the difference between the entropy of the products and the reactants
- 7. an equation that includes the quantity of energy released or absorbed as heat during the reaction
- 8. the difference between the entropy of the products and the reactants
- 10. The overall enthalpy change in a reaction is equal to the sum of enthalpy changes for the individual stepsin the process
- 12. the quantity of energy transferred as heat during a chemical reaction
- 15. difference between the change in enthalpy, ∆H,and the product of the Kelvintemperature and the entropy change, which is defined as T∆S.