ABSTRACT
The melting reaction terminates after a broader temperature interval for faster heating rates, since less time was permitted per degree of temperature increase for the reaction to proceed. On the same principle, the faster the heating rate, the more the peak maximum appears to shift toward higher temperature. However, the faster heating rate causes the rate of heat flow into the sample to be greater than under the slower heating rate, permitting a more rapid transformation rate. As a result, the time of transition under the fast heating rate is shorter. These considerations have an interesting effect: fast heating rate endotherms are narrower in traces with time as the x-axis and broader where temperature is the x-axis.
