It was illustrated that in a successive repeating non-cyclic process the net entropic energy dissipates through the system and surrounding with an arrow of time. Here we call the total dissipated energy (W diss ) the net entropic energy (-T ∆S sys,net = T ∆S sur,net ) between the system and its surrounding as is shown in Eq 19. Using this definition, Helmholtz's energy change will be: