1						2
									3		4								5
	6
															7		8
					9
			10
	11
												12
							13
		14
15
								16

Across 2. Law of thermodynamics that states that the entropy of all perfect crystalline substances is zero at T=0 6. s series of relations between derivatives of thermodynamic properties based on criteria for changes in the properties being exact differentials 11. the combination of the First and Second Laws 13. the direction of change that does not require work to bring it about 14. are determined calorimetrically by measuring the heat capacity of a substance from low temperatures up to the temperature of interest 15. Acts as a signpost of spontaneous change 16. the number of ways in which the molecules of a system can be arranged while keeping the total energy constant

Down 1. Scale that is a special case of the thermodynamic temperature scale 2. entropies based on S(0)=0 3. The entropy change accompanying any physical or chemical transformation approaches zero as the temperature approaches zero 4. used to prove that entropy is a state function 5. the temperature at which two phases are in equilibrium at 1 atm 7. entropy calculated from it is sometimes called the statistical entropy 8. A function of the pressure and temperature, is defined so that this relation is exactly true 9. measurements made at 1 bar on pure material, the final value is 10. The recognition of two classes of process, spontaneous and non-spontaneous. 12. entropy is this type of function