Discusses key concepts when considering the thermodynamics of adsorption using gas-solid chromatography. (CS)

Discusses the thermodynamics and kinetics of cycloamylose complexation and the use of cycloamyloses to illustrate enzyme active site and spectroscopic studies. (MLH)

Describes several oscillating chemical reactions which can be used in undergraduate chemistry laboratories. In one such reaction, ferroin oscillates from red (reducing solution) to blue (oxidizing solution) for about an hour at a frequency which can readily be shown to depend on such factors as the temperature, type of solvent, and concentration…

Describes a demonstration using a heated wire to illustrate the phase change from the body-centered cubic form of iron to the face-centered cubic form. (MLH)

Questions and answers to biochemistry four topics are presented. Items include fatty acid synthesis, reaggregation of sponge cells, enzymic degradation of pollutants, and energy requirements of organisms. (RWH)

Three questions and answers involving chemistry are presented. Question one involves elimination of reptiles from the earth; the second considers chemical effects on taste acuity; the third relates to muzzle velocity of a projectile fired from a gun and temperatures inside the cartridge. (MLH)

Photographs illustrate several principles of physics which can be observed in everyday situations. (CP)

This paper is concerned with the thermodynamic formulation of the Activated Complex Theory (otherwise called Transition State Theory or Absolute Rate Theory). (Author/CP)

Discusses a criterion for determining when to use the simplifying assumption that the amount of weak acid or base dissociated is negligible compared with the total concentration. (MLH)

Presents demonstrations concerning the thermodynamic properties of rubber elasticity and simultaneous reactions of acetone. (MLH)

Presents some organized ideas in thermodynamics which are suitable for use with high school (GCE A level or ONC) students. Emphases are placed upon macroscopic observations and intimate connection of the modern definition of temperature with the concept of ideal gas. (CC)

Discusses methods for observing oscillations in a chemical reaction about a steady state en route to equilibrium. (MLH)

Describes a laboratory experiment that uses a programmable calculator and the concepts of activity and activity coefficients to examine the effect of ionic strength on equilibrium constants. (LH)

Describes an experiment that illustrates the role of hydrogen bond formation in producing a heat of reaction when ethanol and water are mixed. (MLH)