4 Te wera huna Te wera o te hanumi Te wera o te mimiti – Ngā raruraru me ngā otinga
1. Tātaihia te nui o te wera i tāpirihia ki te 1 karamu o te koura hei huri i te āhua mai i te totoka ki te wai. Ko te wera o te hanumi mō te koura he 64.5 x 103 J /kg.
Mōhiotia:
Taumaha (m) = 1 karamu = 1 x 10 -3 kg
Te wera o te hanumitanga (L F ) = 64.5 x 103 J /kg
E hiahiatia ana: Wera (Q)
Rongoā:
Q = m L F
Q = (1 x 10 -3 kg)(64.5 x 10 3 J/kg)
Q = 64.5 Joule
[irp]
2. Tātaihia te nui o te wera e tukuna ana e te 1 karamu o te konukōre hei huri i te āhua mai i te wai ki te totoka. Ko te wera o te hanumitanga mō te konukōre he 11.8 x 103 J /kg.
Mōhiotia:
Taumaha (m) = 1 karamu = 1 x 10 -3 kg
Te wera o te hanumitanga (L F ) = 11.8 x 103 J /kg
E hiahiatia ana: Wera (Q)
Rongoā:
Q = m L F
Q = (1 x 10 -3 kg)(11.8 x 10 3 J/kg)
Q = 11.8 Joule
3. Tātaihia te nui o te wera e mimitihia ana e te 1 kg wai hei huri i te āhua mai i te wai ki te mamaoa (korohū). Te wera o te mimiti mō te wai = 2256 x 103 J /kg
Mōhiotia:
Taumaha (m) = 1 kg
Te wera o te mimiti (L V ) = 2256 x 103 J /kg
E hiahiatia ana: Wera (Q)
Rongoā:
Q = m L V
Q = (1 kg)( 2256 x 103 J /kg)
Q = 2256 x 10 3 Joules
[irp]
4. Tātaihia te nui o te wera e tukuna ana e te hauota hei huri i te āhua mai i te kohu ki te wai. Te wera o te kohu mō te hauota = 200 x 103 J /kg
Mōhiotia:
Taumaha (m) = 1 karamu = 1 x 10 -3 kg
Te wera o te mimiti (L V ) = 200 x 103 J /kg
Mōhiotia: Wera (Q)
Rongoā:
Q = m L V
Q = (1 x 10 -3 kg)( 200 x 10 3 J/kg)
Q = 200 Joule
- Te huri i ngā tauine pāmahana
- Whānuitanga rārangi
- Te whakawhānui ake i te rohe
- Whakawhanuitanga rōrahi
- Heat
- Te ōrite ā-pūkaha o te wera
- Te wera motuhake me te kaha wera
- Te wera huna, te wera o te hanumi, te wera o te mimiti
- Te tiaki pūngao mō te whakawhiti wera
