Describes a set of experiments for an undergraduate laboratory which demonstrates the relationship between velocity, mass, and temperature in a gas. The experimental method involves time-of-flight measurements on atoms excited to metastable states by electron impact. Effects resulting from recoil in the electron-atom collision can also be…

Delineates between steady state and equilibrium assumptions, demonstrating the importance of making the equilibrium assumption at the appropriate step in the calculation. Indicates that, for an ozone system, concentrations predicted by these assumptions are different, and depending on the progress of each reaction, can be far from the exact…

Describes refinements and modifications in the construction of an apparatus to study the kinetics of fast reactions. (CS)

Presents a method for obtaining all mass conservation conditions implied by a given mechanism in which the conditions are used to simplify integration of the rate equations and to derive stoichiometric relations. Discusses possibilities of faulty inference of kinetic information from a given stoichiometry. (CS)

This study was made to determine torque-generating capabilities at two speeds in active young boys and girls for the knee and elbow flexors and extensors. (JD)

Quantitatively investigates the applicability of using the steady state approximation in the kinetics of complex reactions with reversible reactions. (MLH)

Describes a study of the kinetics of the recombination of nitrogen atoms in which concentration-time relations are determined directly by utilizing visual observations of emissions to make gas phase titrations of N atoms with NO. (MLH)