2. (20 pts) If iron is heated and compressed from 350 K and 1.0 atm to 700 K and 2.0 atm, by how much does its chemical potential change? Use +27.3 J mol' k' as the molar entropy and 7.874 g cm as density, and assume each stay constant for the entire range of T and P. The molar mass of iron is 55.845 g mol-. Of T and P, which has a greater effect on chemical potential, and why do you think that is