Size-dependent physicochemical properties of nanoparticles led to certain complications in thermodynamic calculations followed by energy balance as the first step in these calculations. This work reviewed recent studies on nanothermodynamic topics in an attempt to find some thermodynamic methods for establishing energy balance in systems containing nanoparticles. Some thermodynamic paths were introduced to establish energy balance for ease of calculation by avoiding unknown functions. Based on the proposed pathway, enthalpy changes for several processes involving nanoparticles, such as formation of nanoparticles and phase transitions, were investigated and formulated. (C) 2018 Elsevier B.V. All rights reserved.