Question

For the 2.50 mole sample of the gas with the equation of state given The gas is described by the equation of state PV=n(RT+PB)where B = 82.0 cm3/mole. expand the gas from 20.0 bar to 2.00 bar isothermally at 500 K, and calculateΔA and ΔG.

Answer 1

We know that the formulae to calculate ΔA and ΔG are:

Since,
ΔE and ΔH both are functions of temperature, therefore ΔE = ΔH = 0

Therefore, ΔA = ΔG = -TΔS.

Now, we know that according to the 2nd law of thermodynamics:

And according to the first law of thermodynamics, for an isothermal process:

So, ΔG = ΔA = -28101.97J