CHEM 4501 Study Guide - Midterm Guide: Excluded Volume, Endothermic Process, Sign Convention
Document Summary
19. 6: work and heat have a simple molecular interpretation. 19. 9: relative enthalpies can be determined from heat capacity data and heats of transition. 19. 10: enthalpy changes for chemical equations are additive. 19. 11: heats of reactions can be calculated from tabulated heats of formation. 20. 2: nonequilibrium isolated systems evolve in a direction that increases their probability. 20. 3: unlike heat, entropy is a state function. 20. 6: we must always devise a reversible process to calculate entropy changes. 20. 8: entropy can be expressed in terms of a partition function: 21. 6 practical absolute entropies of gases can be calculated from partition functions. 21. 7 the values of standard molar entropies depend upon molecular mass and molecular structure. 21. 8 the spectroscopic entropies of a few substances do not agree with the calorimetric entropies. 21. 9 standard entropies can be used to calculate entropy changes of chemical reactions. James p. joule experimentally proved that both work and heat can produce a change in temperature of matter.
