所屬科目:研究所、轉學考(插大)◆物理化學
(a) the gas is ideal. (5%)
(b) the equation of state of the gas is P(Vm-b) = RT, with b=0.03 dm3 mol-1. (5%)
(a) w (5%)
(b) q (5%)
(c) ΔH (5%)
(d) ΔS (5%)
(e) ΔG (5%)
(f) ΔA (5%)
(a) Using the Gibbs-Helmholtz equation, calculate the Gibbs energy of reaction (ΔG) at 450 K.Assume that the reaction enthalpy ΔH remains constant over this temperature range. (5%)
(b) Is the decomposition of Ag2O spontaneous under conditions at 450 K? Explain why. (5%)
(c) Calculate the decomposition temperature, defined as the temperature at which ΔG becomeszero. (5%)
第 4 題0.135 g of an organic nonelectrolyte is dissolved in enough water to make 205 mL of solution at22.4 °C. The osmotic pressure of the solution is 25.6 Torr. Calculate the molar mass of theorganic compound in g per mole. (R = 0.082 L atm/ mol K) (5%)
(a) What is the amount of solid and liquid phase inpercentage? (10%)
(b) Calculate the composition of the solid that separatesand that of the liquid that remains. (10%)
第 6 題(a) Derive the half-life of a first-order reaction is \( t_{1/2} = \frac{\ln 2}{k} \). (5%)
(b) The decay of Iodine-131 (131I) follows first-order kinetics and has a half-life of 8.0 days.What is the rate constant for the decay process? (5%)
第 7 題A chemical reaction doubles in speed for every 10 K increase in absolute temperature from roomtemperature (about 295 K). What is the activation energy of the chemical reaction? (5%)