(a) What is the degree of freedom of azeotrope according to phase rule? 

Problem 5 (10%) A gas-phase, reversible reaction, , with both rate constants obeying the Arrhenius Law. Please show that the difference of activation energy between forward (k1) and backward (k2) rate constants is equal to the reaction enthalpy; i.e., indicate the activation energy of the forward and backward rate constants, respectively.

Problem 6(10%) A liquid-phase irreversible reaction: P +Q →R+S follows the elementary reaction rate law. This reaction is carried out in a series of three, equal volume CSTRs at the same reaction temperature. The concentrations of P and O in the feed to the first reactor are the same If the rate constant (k) for this reaction is 3.50 L/mol-h at the operation temperature. The final conversion is 0.75. If the total volume of these three reactors is 9300 L, what is the volume flow rate (in L/h) to the first reactor? What are the conversions in reactors 1 and 2?

Problem 7(10%) The elementary irreversible gas phase catalytic reaction A-B is carried out isothermally in a batch reactor with rate constant of 0.2 dm3/kgcat *min at 300K. The catalyst deactivation follows a first order decay law (with decay rate constant of 0.1 at 300K) and is independent of the concentrations of both A and B. Calculate the conversion in the reactor after 10 minutes at 300 K. Additional Information: Initial concentration of A = 1 mol/dm3 Batch reactor volume (V0) = 1 dm3 Catalyst weight (W)= 1 kg

1. Erklaren Sie den gesellschaftlichen Hintergrund des Konfliktes. 

2. Erlautern Sie die unterschiedlichen Vorstellungen der juingeren und alteren Generation. Dabei sollen Sie die Meinungen objektiv und nicht abwertend (beleidigend) betrachten. 

3. Betrachten Sic beide Sciten auch kritisch. 

4. Nennen Sie sachlich Ihre eigene Meinung. 

Essay #1 Too many English majors doubt their college major choice, and too many would-be English majors are choosing other majors because "you can't make any money with an English degree," "there aren't any jobs," "I don't want to teach," etc. The misconceptions and negative stereotypes that surround the degree itself and what an English degree can do for your future go on and on, but they can be changed! Do you agree?In your experience, what is the most common misconception or stereotype about English majors? How do you defend English majors? What are some of the excellent reasons to ignore the pressure from parents and employers and go for the humanities? In an essay, a) discuss both the misconceptions and value of an English major/education in the humanities, b) choose your stance, c) state your argument with examples, then d) conclude.

Essay #2 ''Culture encompasses religion, food, what we wear, how we wear it, our language, marriage,music, what we believe is right or wrong, how we sit at the table, how we grect visitors, how we behave with loved ones, and a million other things," Cristina De Rossi, an anthropologist at Barnet and Southgate College in London, told LiveScience.The word "culture" derives from a French term, which in turn derives from the Latin "colere," which means to tend to the earth and grow, or cultivation and nurture. 'It shares its etymology with a number of other words related to actively fostering growth," De Rossi said.What is your understanding/definition of "culture"? In an essay, explicate some key characteristics of culture with examples from a literary work, a song, a piece of art, or a social movement/event.

110年 - 110 國立清華大學碩士班考試入學試題_化學工程學系:化工熱力學及化學反應工程#105705