The Variation of the Differential Diffusion Constant of Sulphuric Acid with Temperature

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Abstract
The differential diffusion constant of sulphuric acid has been determined for concentrations from 0.025 mole per liter to 1 mole per liter at temperatures from 10°C to 35°C. Over the whole range of temperature, the variation of the diffusion constant with concentration is similar to that previously found at 25°. The mean activation energies of transport for the temperature intervals 10–15°, 15–25° and 25–35° are 4.9, 4.5 and 3.8 kcal, respectively.

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