The application of approximation methods to the solution of systems of non-linear differential equations, of the type found in complex reaction mechanisms, has been considered. Two methods of deriving the approximations ...

The solvation of an ion in a binary solvent mixture has been treated in terms of consecutive stepwise equilibria with the solvent exchange process becoming more, or less, energetically favourable as the solvation shell ...

Viscosity B-coefficients and activation parameters have been measured for a number of salts in formamide. The results are discussed in terms of the effects of individual ions on the structure of the solvent.

Mixtures of methyl and ethyl radicals have been generated at 295 K in a fast flow discharge system by addition of hydrogen atoms to ethylene in helium at total pressures from 6 to 15 Torr (1 Torr = 133 N m–2). Mass ...

At 295 K there is clear evidence from the observed X-ray and u.v. induced spectra that CO is adsorbed in a molecular form. The observed spectra are in good agreement with the ionisation potentials expected of electrons in ...

Reflectance changes at polished electrode surfaces can arise from changes of optical properties of the metal surface and from changes of local ionic concentrations in the double-layer. The significance of these two effects ...

The standard free energy of transfer, ΔG°t of sodium decylsulphate (SDS) and of decyltrimethyl-ammonium bromide (DTMABr) from pure water to mixtures of water and acetone (AC) have been determined by accurate vapour pressure ...

The excess enthalpies of mixtures of 1,2-dichloroethane with cyclohexane, benzene, toluene, o-, in- and p-xylenes have been measured at 298.15 K. 7/E values for the first two systems are found to be positive over the entire ...

The chemisorption of hydrogen on Raney nickel has been studied by neutron inelastic spectroscopy at high energy transfer. The main vibration levels at 120 and 140 meV are interpreted as being produced by multi-bonded surface ...

The adsorption of a series of gases onto clean evaporated films of polycrystalline nickel has been studied using ultraviolet and X-ray photoelcctron (u.p.e. and X.p.e. respectively) spectroscopy. Observation of the intensity ...