Analyzes the sudden drop in the isothermal entropy of mixing when two ideal quantum gases are made identical. (Author/SL)

The correlation between extended high-frequency thresholds and caloric responses was studied in 52 dizzy patients, aged 15-84. Results showed no strong tonotopic relation between the audiometric data and unilateral weakness of the caloric response, but indicated a subtle trend for eye velocity to increase as a function of increasing hearing…

Scientists often use the "slingshot effect" (also called the "gravity assist") of the gravitational field of a planet to increase or decrease the velocity of a spacecraft. Examples of this effect, puzzling aspects, a qualitative explanation, details of necessary calculations, a thermodynamic analogy, and other topics are discussed. (JN)

Understanding and teaching about the environmental predicaments of humankind starts with four basic ideas: (1) the world population; (2) world resources; (3) biogeochemical cycles; and (4) thermodynamics. Each of these basic ideas is discussed. (JN)

Discusses a simple method for following the movement of a solute in an adsorption or ion exchange system. This movement is used to study a variety of operational methods, including continuous flow and pulsed flow counter-current operations and simulated counter-current systems. Effect of changing thermodynamic variables is also considered. (JM)

Traces the development of thermodynamics in physics, focusing on a strategy which enables students to grasp in a limited time and by means of simple calculus the main implications of the second law essential for everyday life (understanding operation of heat engines, refrigerators, heat pumps, district heating, and energy degradation). (JN)

Uses the intersecting parabola model to derive an equation that relates the observed free energy of activation for a slow proton transfer to the overall thermodynamic free energy change in the reaction. (MLH)

Describes an advanced undergraduate experiment in which the stepwise stability constants of hi(II)-cysteine chelate are determined. (MLH)

Discusses the fact that heat only exists at the boundary of a system as energy is being transferred because of a temperature difference between the system and the surroundings. Points out that many texts incorrectly refer to heat as a system component. (MLH)

This study investigates the difficulties first year chemistry students have with learning the concept of energy. Students have difficulty understanding heat and work as path functions and energy as a state function. Textbooks analysis, the evaluation of current practice and teaching experiments, and epistemological analysis were conducted during…

Inquires into the individual names and dates which are associated with the various perfect gas laws on the basis of published and historically researched works. Indicates the presence of eight features in giving a scientist credit for a scientific discovery. (CC)

Outlines a physical chemistry course which is designed for civil engineering juniors and seniors to solve environmental problems. (CC)

The common definition is shown to be false. A modern definition must be based on the first and second laws of thermodynamics and in terms of a set of algebraic expressions written in such a way that their sum does not change when a system is isolated. (DF)