25% 1. Two moles of an ideal gas (Cv= 1.5 R) are heated from 300K to 500K and the pressure increases fiom 2.5 atm to 4.0 atm. Calculate the entiopy change for the process.

5. Please write the equation that relates the temperature to the amount of gas adsorbed on a solid's surface, and solve for enthalpy change for the adsorption of 40 cm3 of CO (measured at 0 ℃ and 1 atm) by 1 g of silica at 60 °K, and 8 cm3 at 298 °K.