4.(本題總分10%) How to determne the spontacos diection of change?

二、簡答題:(每題分數如題前說明,每题10分,共40分) 1.(本題總分10%)Please gvetw experimenta eslts to show the existence of real gas.

2.(本題總分10%) Use the principle of corresponding states to suggest the pressure and temperature at which 1.0 mol of CO2 will be in states that correspond to 1.0 mol N2 at 1.0 atm and 25 C. (For N2, Pc = 33.54 atm, Tc=126.3 K, For CO2, Pc = 72.9 atm, Tc = 304.2 K. Pc: critical pressure； Tc: critical temperature)

3.(本題總分10%)Give physical explaation why constant-pressue heat capcity(Cp) is larger than constant-volume heat capacity (Cv)?

(2) Derive a rate law assuming adsorption of X is rate-limiting. Let Y adsorb on catalyst surface and react with Xㆍ S. (10%) ＜Hint＞ Modified ( B ) and add one extra adsorption reaction.

(1) Derive a rate law assuming surface reaction is rate-limiting. (10%)

3. Consider a second-order reaction 2A→B+C, which is occurred in 20 meters of schedule 40 pipe packed with catalyst. There is 104.4 Ibm/h of gas flowing through the bed with the entering pressure of 101300 Pa. Temperature was kept at 260℃. Entering volumetric flow rate (vo) is 6.5 m3 /h. Cross-sectional area of pipe is 0.0013 m2. Catalyst pellet size is 6 mm； catalyst bulk density is 1800 kg/m3. Pressure drop parameter (β0) is 2580 Pa/m. Assume specific reaction rate constant (k) is independent of particle size； k = 0.012 m6/mol kg cat. h. Calculate the conversion with and without pressure drop. (20%) If the catalyst size increases by a factor of 2, what is the conversion with pressure drop? (10%)

(2) Find for the gas in this process. (10%) ＜Hint＞ Expansion rule:

(1) Derive an expression relating, to measurable properties. (10%)

1.One hundred moles per minute of a binary mixture of 50% A and 50% B are separated in a two-stage (serial) process. In the first stage, the liquid and vapor flow rates exiting from the stage are each 50 mol/min. The liquid stream is then passed into a second separator that operates at the same temperature as the first stage. The temperature is the same for each stage, and at that temperature, the vapor pressure of A is 10 kPa and the vapor pressure of B is 100 kPa. Treat the liquids and vapors as ideal. Calculate the compositions of the vapor and liquid streams, and the pressure in the first stage. (30%)

110年 - 110 國立臺北科技大學_碩士班招生考試_化學工程與生物科技系化學工程碩士班(甲組)：化工熱力學與反應工程#102208

110年 - 110 國立臺北科技大學_碩士班招生考試_分子科學與工程系有機高分子碩士班(乙組)：化工熱力學#102090