Across
- 3. is 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 due
- 4. Heat, the heat required to raise the temperature of the unit mass of a given substance by a given amount
- 6. unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre
- 7. A measurement of the energy content of food.
- 8. the average kinetic energy of all the atoms or molecules of that substance
- 11. the heat absorbed by one mole of that substance as it is converted from a liquid to a gas
- 13. thermal energy transferred between two systems at different temperatures that come in contact.
- 16. energy which a body possesses by virtue of being in motion.
- 17. the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions.
- 18. a thermodynamic quantity equivalent to the total heat content of a system. It is equal to the internal energy of the system plus the product of pressure and volume.
- 19. the amount of energy is neither created nor destroyed.
- 20. Chemical reactions that absorb (or use) energy
Down
- 1. an apparatus for measuring the amount of heat involved in a chemical reaction or other process.
- 2. is the difference between total reactant and total product molar enthalpies, calculated for substances in their standard states.
- 5. the energy stored in the chemical bonds of a substance.
- 9. Chemical reactions that release energy
- 10. the heat absorbed by one mole of that substance as it is converted from a solid to a liquid
- 12. the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.
- 14. the heat energy given out when one mole of a substance burns completely in oxygen.
- 15. power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.