Determine the values of δu′, δh′, δs′, δa′, and δg′ for the following processes (in (c), (d), and (e), show that an absolute value of the entropy is required): a. the four processes in problem 4.1 b. the expansion of 1 mole of an ideal gas at the pressure p and the temperature t into a vacuum to double its volume c. the adiabatic expansion of 1 mole of an ideal gas from p1, t1 to p2, t2 d. the expansion of 1 mole of an ideal gas at constant pressure from v1, t1 to v2, t2 e. the expansion of 1 mole of an ideal gas at constant volume from p1, t1 to p 2, t2