Thermochemistry is the study of the relationship between Chemical energy and
Specific heat at a constant pressure (Cp) is defined by
According of first law of thermodynamics the change in internal energy. (ΔE) accompanying a process, performing a work (W) and involving absorption of heat (Q) on the surroundings is given by the relation
The internal energy of a system depends upon
In a closed system, there is
Enthalpy H is defined as