If the total internal energy, total pressure and the total volume of a phenomenon are given, then by using the sum of the energy and the product of the pressure and volume is generally used to calculate the enthalpy. The general expression of the enthalpy is shown below, ...
2Ca(s)+O2(g) rightarrow 2CaO(s) Delta Hrxn= -1269.8 kJ; Delta Srxn= -364.6 J/K. Calculate the free energy change for the reaction at 25 C. (a) What is the exact difference between q and delta H? (b) How they relate to delta E in terms of thermochemistry? Co...