[理工] [熱力]-北科98-化工

看板Grad-ProbAsk作者u487000 (smile87)時間16年前 (2010/01/14 10:11)推噓2(2推 0噓 2→)

留言4則, 3人參與討論串1/2 (看更多)

AiR is to be compreesd reversibly from an initial condition of 1 atm and 60(*f) to a final state of 5 atm and 60(*f) by three different processes: (a)heating at contant volume followed by cooling at constant pressure. (b)isothermal compression (c)adiabatic compression followed by cooling at constant volume Air may be considered as ideal gas with Cv=5 and Cp=7(btu)/(lb moa)(*f) ,the initial volume=379ft^3 .the final volume=75.8ft^3 計算(1)the work required (2)the heat transferred (3)the change in the internal energy of the gas (4)the change in the enthalpy of the gas fr the three processes *是度F 題目可能很簡單... 但是小弟我看不太懂= =!!它是怎麼算的還有一題證明 (1)k is the joule-thomson coefficient 這個我沒學過... 又要麻煩各位高手了... 很抱歉... -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.125.207.105 ※ 編輯: u487000 來自: 140.125.207.105 (01/14 10:11)

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ntust661

01/14 10:13, , 1^F

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osunriceo

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osunriceo

01/14 21:06, , 3^F

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