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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

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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 (F1), [20 pts]
(b) the molar flow rate of recycle gas (F2). [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]