Across
- 2. The heat capacity of 1 g of a substance; the heat required to raise the temperature of 1 g of a substance by 1 °C
- 6. The heat required to raise the temperature of one mole of a substance by 1 °C
- 7. The law that states that the heat evolved in a given process can be expressed as the sum of the heats of several processes that, when added, yield the process of interest
- 10. The capacity to do work or to transfer heat
- 12. The flow of energy from a body
- 13. The quantity of heat required to raise the temperature of a sample of matter by 1 °C (or 1 K)
- 14. The movement of an object against some force
- 16. The change in enthalpy that accompanies the formation of one mole of a substance form its elements, with all substances in their standard states
- 18. A property of a system that is determined by its state or condition and not by how it got to that state; its value is fixed when temperature, pressure, composition, and physical form are specified
- 22. In thermodynamics, everything that lies outside the system that we study
Down
- 1. energy The energy that an object possesses by virtue of its motion
- 2. The change in enthalpy in a process when all reactants and products are in their stable forms at 1 atm pressure and a specified temperature, commonly 25 °C
- 3. The enthalpy change associated with a chemical reaction
- 4. An apparatus that measure the heat released or absorbed in a chemical or physical process
- 5. The experimental measurement of heat produced in chemical and physical processes
- 8. A process in which a system releases heat to its surroundings
- 9. A quantity defined by the relationship H = E + PV; the enthalpy change, ΔH, for a reaction that occurs at constant pressure is the heat evolved or absorbed in the reaction: ΔH = qp
- 10. The enthalpy change that accompanies the formation of a substance from the most stable forms of its component elements
- 11. A push or a pull
- 15. The SI unit of energy, 1 kg-m^2/s^2
- 17. The law of thermodynamics that states energy is conserved in any process. One way to express the law is that the change in internal energy, ΔE, of a system in any process is equal to the heat, q, added to the system, plus the work, w, done on the system by its surroundings: ΔE = q + w
- 18. In thermodynamics, the portion of the universe that we single out for study. We must be careful to state exactly what the system contains and what transfers of energy it may have with its surroundings
- 19. A process in which a system absorbs heat from its surroundings
- 20. A unit of energy, it is the amount of energy needed to raise the temperature of 1 g of water by 1 °C from 14.5 °C to 15.5 °C
- 21. energy The energy that an object possesses as a result of its composition or its position with respect to another object