Some calculations for organic chemists: boiling point variation, Boltzmann factors and the Eyring equation

How do the boiling points of substances vary with pressure? Commonly used nomographs can give a misleading impression of accuracy. An applet is presented which gives a more precise measure of the uncertainty in the calculation, whilst giving a straightforward way to calculate how boiling points may vary with pressure. Related applets calculate Boltzmann factors and the solution to the Eyring equation, which give an idea of how rate and selectivity may change with temperature. (C) 2000 Elsevier Science Ltd. All rights reserved.