If two reagents mixed at the same temperature do not react, but when mixed at a temperature difference of \(T_{ex}\) reacted and turned dark blue,
we have canceled the temperature charge difference between the two reagents, and have also negated any heat change as the reaction proceeds.
It is providing the heat required first when the reaction is endothermic or removing heat first when the reaction is exothermic, so that the reaction can proceed without hindrance and without further energy change.
Here lies the problem; like electrical charges within a dielectric as it aligns when a capacitor is charged, the temperature charges within the temperature charge clouds of the resulting compounds do not increase the temperature potential of the containment linearly, correspondingly. The reaction has an imbalance of energy (negative or positive) that was accounted for using latent energy when a significant amount shows up. But where is this latent energy without a temperature charge cloud?
Furthermore, when the temperature charge clouds rearrange themselves as the molecules move, temperature changes and so does the thermal energy content of this containment of molecules.
So, if a reaction is difficult under normal conditions, try changing the relative temperatures of the reagents. Reagents with a larger temperature charge clouds have lower temperature and will have to increase in temperature to match energy levels with reagents that have smaller temperature charge clouds. And conversely, cool the reagents with smaller temperature clouds.
Have a nice day...