110年 - 110 高雄科技大學_碩士班招生考試_化學工程與材料工程系：物理化學(乙組)#104402

(a) The standard Gibbs energy of reaction is 21.21 . What is the value of the Gibbs energy of reaction in ?

2. (a) Show that = 0 for an ideal gas, where and P are molar enthalpy and pressure,
respectively. You can start from the equation below

where is molar entropy, is molar volume, and T is temperature

(b) A piece of stretched rubber exerts a force of 5 N. How much work (in J) has to be done on the rubber to stretch it one centimeter?

3. The density of liquid water at 300 K is . Activity is represented by a. What is the value of In(a) of liquid water at 80 bar at 300 K?

Note: In(D) = Natural logarithm of D, = m,

4. A and B represent different substances. A and B cannot occur chemical reaction. Assuming that A and B are ideal gases, what is the entropy (in J) of mixing of 2 mol A with 3 mol of B at 300 K?

Note: In(cd) = In(c) + In(d),

= nIn(m)

5.ine burns a stoichiometric mixture of fuel (liquid hydrogen) in oxidant (liq The combustion chamber is cylindrical, 1.2 m long and 80 cm in diameter, and the combustion process produces 306 kg s' of exhaust gases. 2H₂(I) + O₂(I) = 2H₂O(g). The reactor volume and me in which reaction takes place are identical. If combustion is complete, value of the rate of reaction of oxygen in kgmol m3 sl?

Note:

6. The galvanic cell has standard electromotive force E° of 0.1 V at 25℃. K is the equilibrium constant. Assumning the charge number for the reaction is unity, what is the value of In(K) of the reaction that occur in the cell?

Note: In(D) = Natural logarithm of D,

= m

110年 - 110 高雄科技大學_碩士班招生考試_化學工程與材料工程系：物理化學(乙組)#104402

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