3 Ngā tauira o te ture a Boyle (te pāmahana pūmau-isothermal)
1. I te tīmatanga, ko te pēhanga o tētahi nui o te hau pai ko P, ā, ko te rōrahi ko V. Mēnā ka pāngia te hau e tētahi tukanga isothermal kia 4 ngā wā o te pēhanga o te pēhanga taketake, ka huri te rōrahi o te hau ki...
Kōrero
E mōhiotia ana :
Pēhanga tuatahi (P1) = P
Pēhanga whakamutunga (P2) = 4P
Te rōrahi tīmatanga (V1) = V
I pātaihia : te rōrahi whakamutunga o te hau (V2)
Whakautu :
Te ture a Boyle (te tukanga pāmahana isothermal, pāmahana pumau rānei) :
PV = pūmau
P1 V1 =P2 V2
(P)(V) = (4P)(V2)
V = 4 V2
V2 = V / 4 = ¼ V
Ka huri te rōrahi o te hau ki te ¼ o te rōrahi tīmatanga.
2. I roto i tētahi ipu kua kati, ka whakawhanui te hau kia rua te hurihanga o tōna rōrahi i te rōrahi tīmatanga (V = rōrahi tīmatanga, P = pēhanga tīmatanga). Ka huri te pēhanga hau ki…
Kōrero
E mōhiotia ana :
Pēhanga tuatahi (P1) = P
Te rōrahi tīmatanga (V1) = V
Rōrahi whakamutunga (V2) = 2V
I pātaihia : te pēhanga whakamutunga (P2)
Whakautu :
P1 V1 =P2 V2
PV = P2 (2V)
P = P2 (2)
P2 = P / 2 = ½ P
Ka huri te pēhanga hau ki te ½ whakarea o te pēhanga tīmatanga.
3. I roto i tētahi oko kua kati, kei reira tētahi hau he 2 atm te pēhanga, ā, 1 rita te rōrahi. Mēnā ka eke te pēhanga hau ki te 4 atm, ka rite te rōrahi hau ki...
Kōrero
E mōhiotia ana :
Pēhanga tuatahi (P1) = 2 atm = 2 x 105 Pascal
Pēhanga whakamutunga (P2) = 4 atm = 4 x 105 Pascal
Te rōrahi tīmatanga (V1) = 1 rita = 1 dm3 = 1x10-3 m3
I pātaihia : Te rōrahi whakamutunga (V2)
Whakautu :
P1 V1 =P2 V2
(2x105)(1 x 10-3) = (4 x 105) V2
(1)(1 x 10-3) = (2) V2
1 x 10-3 = (2) V2
V2 = ½ x 10-3
V2 = 0,5x10-3 m3 = 0,5 dm3 = 0,5 rita
