..., we conclude that the elementary step that generates force is an endothermic reaction (the enthalpy change Δ H °=124 kJ mol −1 at 15 °C), which accompanies a large entropy increase (Δ S °= 430J K −1 mol −1 ) and a reduction in the heat capacity (Δ C p =—6.4 kJ K−1 mol −1 ). Thus, it can be concluded...