Mehlala e 5 ea ho sebelisa molao oa pele oa thermodynamics lits'ebetsong tsa isothermal (mocheso o sa fetoheng)
1. Kerafo e ka tlase e bonts'a khase e loketseng e ntseng e feta ts'ebetso ea isothermal (mokhoa). Mosebetsi o etsoang ke khase ts'ebetsong ea AB ke…
Puisano
Mosebetsi o entsoeng = sebaka se ka tlas'a mothinya AB = sebaka sa khutlotharo + sebaka sa khutlotharo
W = [½ (8 x 10)5–4 x 105)(3-1)] + [4 x 105 (3-1)]
W = [½ (4 x 10)5)(2)] + [4 x 105 (2)]
W = [4 x 105] + [8 x 105]
W = 12 x 105 Joule
Mosebetsi o entsoeng ke khase ts'ebetsong ea AB = 12 x 105 Joule
2. Mosebetsi o etsoang ke khase e ntle ka ho fetisisa e ntseng e sebetsa ABC ke…
Puisano
Hoa tsebahala :
Khatello ea 1 (P)1) = 10 x 105 N / limithara2
Khatello ea 1 (P)1) = 5 x 105 N / limithara2
Buka ea 1 (V)1) = lilithara tse 10 = 10 dm3 = 10x10-3 m3
Buka ea 2 (V)2) = lilithara tse 30 = 30 dm3 = 30 x 10-3 m3
E botsitsoe Mosebetsi o entsoeng ke khase o ntse o tsoela pele ABC
Jawab :
Mokhoeng oa BC, bophahamo ba modumo bo lula bo tsitsitse, kahoo ha ho mosebetsi o etsoang ke khase. Khase e sebetsa feela mokhoeng oa AB hobane ho na le phetoho ea bophahamo ba modumo. Ka hona, mosebetsi o entsoeng ke khase mokhoeng oa ABC = mosebetsi o entsoeng ke khase mokhoeng oa AB.
Mosebetsi o etsoang ke khase = sebaka se ka tlas'a mothinya AB = sebaka sa khutlotharo + sebaka sa khutlotharo.
W = [½(10×105–5×105)(30-10)]+[5×105(30-10)]
W = [½ (5 x 10)5)(20)] + [5 x 105 (20)]
W = [(5 x 105)(10)] + [100 x 105]
W = [50 x 105]+ [100 x 105]
W = 150 x 105 Joule
W = 1,5 x 107 Joule
3. Khase e feta ts'ebetsong ea isothermal. Palo ea mocheso o lokelang ho monngoa hore khase e etse mosebetsi oa li-Joules tse 5000 ke…
Puisano
Hoa tsebahala :
Mosebetsi (W) = 5000 Joule
E botsitsoe : Mocheso o monyela (Q)
Jawab :
Ts'ebetso ea isothermal e boletsoeng potsong ena ke ts'ebetso ea thermodynamic eo mocheso o lulang o tsitsitse. Kamano pakeng tsa mocheso (T) le phetoho ea matla a ka hare a khase e hlahisoa ke equation e latelang:
Haeba mocheso o tsitsitse, joale phetoho mochesong ke lefela. Phetoho mochesong ke lefela, ka hona, phetoho matla a ka hare ke lefela. Ho sebelisa molao oa pele oa thermodynamics ho hlahisa liphetho tse latelang.
Molao oa pele oa thermodynamics :
Haeba phetoho ea matla a ka hare (U) e le lefela, joale mocheso (Q) o monngoang ke khase o lekana le mosebetsi o etsoang ke khase (W). Ha khase e monya mocheso, khase e fumana matla a eketsehileng 'me matla ana a eketsehileng a sebelisoa ke khase ho etsa mosebetsi.
Kahoo mocheso o monngoang ke khase = mosebetsi o entsoeng ke khase = 5000 Joules.
4. Kerafo ea khatello (P) khahlanong le bophahamo ba modumo (V) ba khase e fetang ts'ebetsong ea isothermal e bontšitsoe setšoantšong se ka tlase. Palo ea mocheso o monngoang ke khase ts'ebetsong ea AB ke…
Puisano
Hoa tsebahala :
Khatello ea 1 (P)1) = 5 atm = 5 x 105 Pa
Khatello ea 2 (P)2) = 10 atm = 10 x 105 Pa
Buka ea 1 (V)1) = 2 m3
Buka ea 2 (V)2) = 6 m3
E botsitsoe : Mocheso (Q) o monngoa ke khase ts'ebetsong AB
Jawab :
Isothermal = mocheso o sa fetoheng. Haeba mocheso o dula o sa fetohe, phetoho ya mocheso ke lefela. Haeba phetoho ya mocheso e le lefela, phetoho ya matla a ka hare ke lefela. Kamano pakeng tsa phetoho ya mocheso le phetoho ya matla a ka hare ho khase e hlaloswa ke equation e latelang:
Haeba ho sebelisoa molaong oa pele oa thermodynamics, ho fumanoa liphetho tse latelang:
Haeba phetoho ea mocheso e le lefela, joale mocheso o monngoang ke khase o lekana le mosebetsi o entsoeng ke khase. Ho fumana mocheso o monngoang ke khase ts'ebetsong ea AB, re bala mosebetsi o entsoeng ke khase ho latela kerafo e kaholimo.
Mosebetsi o etsoang ke khase = sebaka se ka tlas'a mothinya AB = sebaka sa khutlotharo + sebaka sa khutlotharo.
W = ½ (P2 - P1)(V)2 - V1) + P1(V2 - V1)
W = ½ (10 x 105 - 5 x 105)(6-2) + (5 x 105(6-2)
W = ½ (5 x 105)(4) + (5 x 105)(4)
W = ½ (20 x 105) + (20 x 105)
W = (10 x 105) + (20 x 105)
W = 30 x 105 Joule
W = 30 atm
Mocheso (Q) o monngoa ke khase ts'ebetsong AB = mosebetsi o etsoang ke khase ts'ebetsong AB = 30 x 105 Joule = 30 sepakapaka.
5. Ho thermodynamics, khase e loketseng e feta ts'ebetsong ea isothermal haeba ...
A. diphetoho boemong ba kgase, mocheso o dula o tsitsitse kamehla
B. limolek'hule tsohle li tsamaea ka lebelo le fapaneng
C. Maemo ohle a khase a lula a fetola mocheso
D. ho suhu lebelo la limolek'hule le phahame
Khatello ea khase ea E. le bophahamo ba modumo ha li fetohe
Puisano
Isothermal kapa isothermic e bolela mocheso o sa fetoheng.
Karabo e nepahetseng ke A.
