3 Ngā tauira pātai mō te ture tuatahi o te thermodynamics
1. E 3000 Joule te wera e tāpirihia ana ki tētahi pūnaha, ā, e 2500 Joule te mahi a te pūnaha ki te taiao. Ko te huringa o te pūngao ā-roto o te pūnaha ko…
Kōrero
E mōhiotia ana :
Wera (Q) = +3000 Joules
Mahi (W) = +2500 Joules
I pātaihia : ngā huringa o te pūngao ā-roto
Whakautu :
Ture Tuatahi o te Thermodynamics :
Ngā ture waitohu :
He pai te Q mēnā ka tāpirihia te wera ki te pūnaha.
He pai te W mēnā ka mahi te pūnaha ki ngā taiao
He kino te Q mēnā ka tukuna te wera e te pūnaha
He kino te W mēnā ka mahi te taiao i runga i te pūnaha
Ngā huringa pūngao i roto i te pūnaha:
Ka piki ake te pūngao i roto i te pūnaha mā te 500 Joules.
2. Ka tāpirihia he 2000 Joule o te wera ki tētahi pūnaha, ā, ka mahi ngā taiao i te 2500 Joule o te mahi ki te pūnaha. Ko te huringa o te pūngao ā-roto o te pūnaha ko…
Kōrero
E mōhiotia ana :
Wera (Q) = +2000 Joules
Mahi (W) = -2500 Joules
I pātaihia : ngā huringa o te pūngao i roto i te pūnaha
Whakautu :
Ka piki ake te pūngao i roto i te pūnaha mā te 4500 Joules.
3. E 2000 Joule te wera ka tukuna mai i te pūnaha, ā, e 3000 Joule te mahi a te taiao ki te pūnaha. Ko te huringa o te pūngao ā-roto o te pūnaha ko…
Kōrero
E mōhiotia ana :
Wera (Q) = -2000 Joules
Mahi (W) = -3000 Joules
I pātaihia : ngā huringa o te pūngao i roto i te pūnaha
Whakautu :
Ka piki ake te pūngao i roto i te pūnaha mā te 1000 Joules.
Whakatau:
– Ki te mimiti te pūnaha i te wera mai i te taiao, ka piki ake te pūngao o roto i te pūnaha.
– Ki te tukuna e te pūnaha te wera ki te taiao, ka heke te pūngao o roto i te pūnaha.
– Ki te mahi te pūnaha ki te taiao, ka heke te pūngao o te pūnaha.
– Ki te mahi te taiao i te pūnaha, ka piki ake te pūngao o roto i te pūnaha.
