1. Ke sebetsana le likhase ka setshelong se koetsoeng qalong ke na le bophahamo ba V le mocheso T. Mocheso oa ho qetela ke 5/4T 'me khatello ea ho qetela ke 2P. Bophahamo ba ho qetela ba khase ke bofe?
Tse tsejoang:
Molumo oa pele (V 1 ) = V
Mocheso oa pele (T 1 ) = T
Mocheso oa ho qetela (T 2 ) = 5/4 T
Kgatelelo ya pele (P 1 ) = P
Kgatelelo ya ho qetela (P 2 ) = 2P
Ho Batloa: Buka ea ho Qetela (V 2 )
Tharollo:
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2. Fumana bophahamo ba dimolekhule tse 2.00 tsa dikgase (kgase e loketseng) ho STP. STP = Mocheso o Tloaelehileng le Kgatelelo.
Tse tsejoang:
Li-mole tsa khase (n) = li-mole tse 2 tsa leqhoa
Mocheso o tloaelehileng (T) = 0 o C = 0 + 273 = 273 Kelvin
Khatello e tloaelehileng (P) = 1 atm = 1.013 x 10 5 Pa
Khase e sa fetoheng (R) = 8.315 Joule/mol e .Kelvin
Ho batloa : Bophahamo ba likhase (V)
Tharollo:
Tekanyo ea Molao o loketseng oa khase (palong ea li-moles, n)
Bophahamo ba limole tse 2 tsa likhase ke lilithara tse 44.8.
Bophahamo ba mole e le 'ngoe ea likhase ke lilithara tse 45.4 / 2 = lilithara tse 22.4.
Bophahamo ba mole e le 'ngoe ea khase efe kapa efe ke lilithara tse 22.4.
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3. Lilithara tse 4 tsa khase ea oksijene li na le mocheso oa 27°C le khatello ea 2 atm (1 atm = 10 5 Pa) ka har'a setshelo se koetsoeng. Kakaretso ea khase ea bokahohle (R) = 8.314 J.mol e −1 .K −1 le nomoro ea Avogadro ( N A ) = 6.02 x 10 23 limolek'hule/mole e . Limolek'hule tsa likhase tsa oksijene ka har'a setshelo ke life?
Tse tsejoang:
Bophahamo ba likhase (V) = lilithara tse 4 = 4 dm 3 = 4 x 10 -3 m 3
Mocheso oa likhase (T) = 27 o C = 27 + 273 = 300 Kelvin
Khatello ea likhase (P) = 2 atm = 2 x 10 5 Pa
Khase e sa fetoheng ka kakaretso (R) = 8.314 J.mol e −1 .K −1
Nomoro ea Avogadro (N A ) = 6.02 x 10 23
Ho batloa : Limolek'hule tsa likhase tsa oksijene ka har'a setshelo ke life (N)
Tharollo:
Ka mole e le 'ngoe ea likhase tsa oksijene, ho na le limolek'hule tsa oksijene tse 1.93 x 10 23.
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4. Setshelo se nang le khase ea neon (Ne, boima ba athomo = 20 u) mochesong o tloaelehileng le khatellong (STP ) se na le bophahamo ba 2 m 3. Fumana boima ba khase ea neon!
Tse tsejoang:
Boima ba athomo ba neon = 20 gram/mol e = 0,02 kg/mol e
Mocheso o tloaelehileng (T) = 0 o C = 273 Kelvin
Khatello e tloaelehileng (P) = 1 atm = 1.013 x 10 5 Pascal
Bophahamo (V) = 2 m 3
Ho batloa : boima (m) ba khase ea neon
Tharollo:
Ka mocheso le khatello e tloaelehileng (STP), 1 mole ea likhase life kapa life, kenyeletsa khase ea neon, e na le bophahamo ba modumo 22.4 lithas = 22.4 dm3 = 0.0448 limithara3.
Ka bophahamo ba 2 m3 , ho na le li-mole tse 44.6 tsa khase ea neon.
Boima ba athomo ba khase ea neon ke ligrama tse 20 ka mole.
Sena se bolela hore ka mole e le 'ngoe ho na le ligrama tse 20 kapa 0.02 kg ea khase ea neon. Hobane ka mole e le 'ngoe ho na le 0.02 kg ea khase ea neon joale ka mole e 44.6 ho na le limole tse 44.6 x 0.02 kg/mole = 0.892 kg = ligrama tse 892 tsa likhase tsa neon.
