Your thoughts about the entropy of coal?

[maajdl]

In the industry, coal and other fuels are typically represented by

- their C, H, O, N, S elemental composition for the combustible part​

- the composition of the ashes (SiO2, Al2O3, Fe2O3, ...)​

- the Low Heat Value (LHV) which is the heat that can be extracted from combustion product​

With these data, the "enthalpy" of coal can be calculated easily from the heat balance during combustion.

But what about the entropy of coal?
Do you think the entropy could be obtained on the basis of the same data listed here above.
Or is something missing? And how to fill the missing information then?

Just curiosity.

Thanks for your ideas ...

Michel

 

[Chestermiller]

What reference state is used for the enthalpy of these substances (temperature, pressure)?

 

[maajdl]

Usually T0=273.15 K , p0=1atm

Thanks for any suggestion

Michel

 

[Chestermiller]

Usually T0=273.15 K , p0=1atm

Thanks for any suggestion

Michel

Usually heats of formation are at 298 and 1 atm.