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> 91年 - 91 淡江大學 轉學考 質能均衡#56118
91年 - 91 淡江大學 轉學考 質能均衡#56118
科目:
轉學考-質能均衡 |
年份:
91年 |
選擇題數:
0 |
申論題數:
5
試卷資訊
所屬科目:
轉學考-質能均衡
選擇題 (0)
申論題 (5)
(a) the molar flow rate of feed gas (F
1
), [20 pts]
(b) the molar flow rate of recycle gas (F
2
). [20 pts]
【已刪除】2. A binary mixture (A + B) which obeys the Raoult,s law is injected into a vacuum chamber. When the liquid mixture is in equilibrium with its vapor phase, the chamber is at 560 mmHg and 20 °C. Estimate the compositions (mole fractions) of liquid and gas phases at the equilibrium. [20 pts]
(a) A fluid is allowed to flow through slightly opened valve from a region where its pressure is 15 atm and 628 K to a region where its pressure is 3 atm,the whole operation being adiabatic. [20 pts]
(b) 1 lbm of gas at 100 psia and 370 °F, enclosed in a cylinder fitted with a movable frictionless piston, is kept at a constant volume until the temperature has failed to 250 °F. [20 pts]