Thrmodynamic properties estimation online for free

www.matweb.com
FACT thermodynamics
http://mansoori.people.uic.edu/Thermodynamic.Data.and.Property_html
http://www.thermocalc.com/academia/students/educational-package-for-students/
Chemical portal-chemistry-tools online
http://www.kagaku.com/malt/
Chem Sage
ChemSheet
http://www.computherm.com/index.php?route=common/home
Antoine equation for thermodynamic properties  in place of Clausius - Clapeyron equation for pure lids or solids

Cp values and its Enthalpy of formation online
DiagPlot is a freeware to draw a 2D & 3D phase diagrams
thermodata for fee
http://ihed.ras.ru/~thermo/thermo_inet.htm
http://www.fzu.cz/~sestak/yyx/DataEvaluation.pdf
http://antoine.frostburg.edu/chem/senese/101/thermo/faq/finding-thermochemical-data.shtml
https://app.knovel.com/web/toc.v/cid:kpKCTE000X/
http://www.engineersedge.com/materials/specific_heat_capacity_of_metals_13259.htm
http://www2.ucdsb.on.ca/tiss/stretton/database/Specific_Heat_Capacity_Table.html

BASICS of thermodynamics - direction of chemical reaction