The water passes through a MHDRS influenced by the Lorents force (F_L = q · [V · B]), which is in resonance with the oscillations of water molecules and its clusters (associates). This leaps to a change in the water structure (enthropy), i.e. second-order phase transition. This is a phase transition, which does alter the heat capacity without the covert heat being released or absorbed. All the water properties go through changes at the point of the phase transition. These include, in particular, heat capacity, steam formation heat, viscosity, density, surface strength, etc.

It has been established by experiment that there are, at least, two resonance Lorents forces produced in the magnetic and hydrodynamic resonance system, which change the heat capacity and steam formation when affecting the water. As follows from the T - S chart for normal water, a drop in the steam formation will increase its heat capacity. It is impossible to reduce both the heat capacity and steam formation heat at the same time. Apparently, such a natural behaviour will still be the case with the water that has passed through the phase transfer in the second degree under the action of magnetic and hydrodynamic resonance.

It is noteworthy that at room temperature the water heat capacity (C_p) is approximately 4.3 kJ/kg · °K and the steam formation heat is 2500 kJ/kg. Hence, a drop in the heat capacity and steam formation heat by 1% will make up 0.043 kJ/kg · °K and 25 kJ/kg, respectively. However, as the temperature goes up the water heat capacity and enthalpy escalates with the evaporation heat going down. Furthermore, enthalpy is defined as h = C_p · (T_i - T_start). Therefore, it rises against the increase of T_i temperature. Hence it follows that there is a zone of temperature and pressure wherein the enthalpy and evaporation heat are in juxtaposition. This calls for the most rational operational pattern of the magnetic and hydrodynamic resonance system for a specific process of heat exchange or steam formation.

In early 90s the experts of Magnetic Technologies personally participated and supervised the tests run on a differential calorific gauge to measure the heat capacity of water treated by MHDRS under the auspices of the Institute for Engineering Problems at the Ukrainian Science Academy. The research was conducted at the ambient pressure with temperature ranging from 20°C to 98°C. It was established that the water heat capacity could be changed by 1.1-1.15 times within the range of 20°-40°C whereas the increase factor reaches 1.6-1.8 fold at the temperature of 75°-98°C.