Calculate DG for the isothermal compression of 30.0 g of water from 1.0 atm to 100.0 atm at 25 °C; neglect the variation of V with P. The density of water at 25 °C is 0.997 g/cm3.
a) Estimate the change in Gibbs energy of 1.0 dm3 of water when the pressure acting on it is increased from 100 kPa to 300 kPa. b) Calculate the change in the molar Gibbs energy of oxygen when its pressure is increased isothermally from 50.0 kPa to 100.0 kPa.