Evolution of soap froth under temperature effects.

Experiments on two-dimensional soap froth under temperature ramping have been performed. At constant temperatures, the classical linear dependence of the averaged cell area with time is observed at di8'erent temperatures. The rate of change of area depends sensitively on temperature. For froths under constant temperature ramping, in contrast to the classical results, a quadratic evolution of the average cell area is observed. This can be explained by a linear dependence of the diffusion rate on temperature.