In this paper, the heat capacity of Li[B.sub.5][O.sub.8] x 5[H.sub.2]O has been determined using an adiabatic calorimeter in the temperature range from 297 to 375 K, and the values of the thermodynamic functions, heat capacity, entropy, enthalpy, and Gibbs free energy, were calculated at temperature 5 K intervals.
Heat capacity measurements were carried out in a high-precision SETARAM BT 2.15 adiabatic calorimeter. The BT 2.15 calorimeter comprises a calorimetric chamber, electrical or pneumatic peripherals, and the liquid nitrogen supply.
According to the experimental method, the heat capacity [C.sub.p] of Li[B.sub.5][O.sub.8] x 5[H.sub.2]O was measured using the adiabatic calorimeter from 297 to 375 K with standard uncertainty 0.05 J x [mol.sup.-1] x [K.sup.-1], and the result of the molar heat capacity of Li[B.sub.5][O.sub.8] x 5[H.sub.2]O is shown in Table 2 and Figure 3.
Vent Size Package (VSP): The VSP is a pressure-compensated adiabatic calorimeter
, and it can be used to determine the onset temperature, thermodynamic (heat of reaction, ?Hr), reaction pressure, and pressure-increase rate (dP/dt) for the reaction associated with the process.