@X@user.full_name@X@ @GMU: What is the temperature at which…

@X@user.full_name@X@ @GMU: What is the temperature at which the reaction below becomes spontaneous, if the standard entropies of reactants and products at 25oC are So (C(gr)) = 5.74 J/mol*K, So(H2(g)) = 130.68 J/mol*K, and So (C5H8(g)) = 331.1100J/mol*K and the heat of formation of C5H8(g)) is 144.4200 kJ/mol?5C(gr) + 4H2(g) → C5H8(g)

John Schreifels @GMU: When 8.078 g of citric acid was dissol…

John Schreifels @GMU: When 8.078 g of citric acid was dissolved in 104.5 g of benzene, the freezing point was 276.6 K. What is the formula mass of this compound? The freezing point depression constant for benzene is 5.12 (°C*kg)/mol. The melting point and boiling points are 5.50°C and 80.10°C, respectively.