History: On the Human Side

Humor: On the Fun Side

1. Bumper Sticker (American Chemical Society, Office of Precollege Science, Room 806; 1155 Sixteenth Street, N.W., Washington, DC 20036) Old Chemists Never Die . . . . They Just Reach

2. Student response on exam: LeChatelier‘s Principle is, if a strain is applied on a substance, the substance will try to assume the most comfortable condition.

3. The meaning of “reversible reaction”? Starting material recovered. (CHEM 13 NEWS, October 1970, p. 193)

4. Word Search (see Appendix for master copy)

Words about the concepts in this module can be obtained from the clues given. Find these words in the block of letters:

5. See cartoons at end of module.


    1. Chemistry: Reaction Rates and Equilibrium, 23 min. video available from Coronet/NTI Film and Video, 108 Wilmot Road, Deerfield, IL 60015; (800) 621-2131; (708) 940-3640 (FAX).

    2. Equilibrium, CHEM Study film/video available from Ward’s Natural Science Establishment, Inc., 5100 West Henrietta Road, P.O. Box 92912, Rochester, NY 14692-9012; (800) 2660.

    3. Introduction to Chemical Equilibrium, Chem 101 Series, University of Illinois Visual Aids Service, 1325 South Oak, Champaign, IL 61820; (800) 367-3456.

    4. Imperial Chemical Industries Ltd. Laws of Disorder, Pt 4: Equilibrium: The Limit of Disorder. ICI Film Library, Thames House North, Mill Bank London SW1P 40G. (Held at University of Minnesota, University Film & Video, 1313 Fifth St. SE, Minneapolis, MN 55414, 1-800-847-8241.)

    5. TV Ontario: Chemical Equilibrium. Six 10-minute video programs with a guide covering various aspects of equilibrium. TVO Video, 143 West Franklin Street, Suite 206, Chapel Hill, NC 27516, 1-800-331-9566.

    6. The World of Chemistry videotape “Number 14: Molecules in Motion.” World of Chemistry Videocassettes. Annenberg/CPB Project, P.O. Box 1922, Santa Barbara, CA 93116-1922; (800) 532-7637; World of Chemistry Series, Atlantic Video, 150 South Gordon Street, Alexandria, VA 22304; (703) 823-2800 or QUEUE Educational Video, 338 Commerce Drive, Fairfield, CT 06430; (800) 232-2224. A secondary school version of this series is available from WINGS for Learning/SUNBURST, 101 Castleton Street, Pleasantville, NY 10570; (914) 747-3310; (800) 321-7511; (914) 747-4109 (FAX).

    7. Software published by JCE: Software, a publication of the Journal of Chemical Education, Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue. Madison, Wl 53706-1396: (608) 262-5153 (voice) or (608) 262-0381 (FAX).

      a. Equilibrium Calculator, by Robert D. Allendoerfer. Vol. VI B, No. 1, for IBM PS/2 PC-compatible computers. b. Equilibrium Calculator, by Robert D. Allendoerfer. Vol. I D, No. 1, for Windows/IBM PC.

    8. Software published by Project SERAPHIM, Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue. Madison, Wl 53706-1396: (608) 263-2837 (voice) or (608) 262-0381 (FAX).

      a. For the IBM PS/2 PC-compatible computer: PC 2901 (Equilibrium simulation program where user inputs data; concentration of each species after each given increment is given numerically or as bar graphs until equilibrium is reached.)

      b. For the Apple II computer: AP 603 (same as PC 2901).

    9. Metcalfe, H., et al. (1986). Modern chemistry: Disk for equilibrium chapter. New York, NY: Holt, Rinehart, & Winston.

    10. Prentice-Hall: Dynamic Equilibrium. 4343 Equity Drive, P.O. Box 2649, Columbus, OH 43216.