He momo taputapu whakaputa hiko te pūtau wahie, e huri ana i te pūngao matū i roto i te wahie ki te pūngao hiko mā te tauhohenga redox o te hāora, o ētahi atu waikura rānei. Ko te wahie tino noa ko te hauwai, e taea te mārama ko te tauhohenga whakamuri o te electrolysis wai ki te hauwai me te hāora.
Kāore i rite ki te rōkete, kāore te pūtau wahie hauwai e whakaputa i te pūngao nekeneke mā te tauhohenga kaha o te tahunga hauwai me te hāora, engari ka tukuna te pūngao kore utu a Gibbs i roto i te hauwai mā te taputapu whakatere. Ko tōna kaupapa mahi ko te wawahi i te hauwai ki ngā irahiko me ngā katote hauwai (ngā pūrotana) mā te whakatere (ko te konukawata te tikanga) i roto i te irahiko pai o te pūtau wahie. Ka tae ngā pūrotana ki te irahiko kino mā te kiriuhi whakawhiti pūrotana ka tauhohe ki te hāora hei hanga wai me te wera. Ka rere ngā irahiko e rite ana mai i te irahiko pai ki te irahiko kino mā te ara iahiko o waho hei whakaputa i te pūngao hiko. Kāore he arai whai huatanga wera o te 40% mō te miihini wahie, ā, ka taea e te whai huatanga o te pūtau wahie hauwai te neke atu i te 60%.
I ngā tau torutoru ki muri, kua mōhiotia te pūngao hauwai ko te "momo tino pai" o ngā waka pūngao hou nā runga i ōna painga o te kore parahanga, te pūngao whakahou, te hauwai tere, te whānuitanga katoa me ērā atu. Heoi, he tino tika te ariā hangarau o te pūtau wahie hauwai, engari he tino whakamuri te ahunga whakamua o te ahumahi. Ko tētahi o ngā wero nui o tōna whakatairanga ko te whakahaere utu. Kei roto i tēnei ehara i te mea ko te utu o te waka tonu, engari ko te utu o te hanga me te rokiroki hauwai.
Ko te whanaketanga o ngā waka pūtau wahie hauwai e whakawhirinaki ana ki te hanganga o ngā hanganga wahie hauwai pērā i te hanga hauwai, te rokiroki hauwai, te kawe hauwai me te whakahauwai. He rerekē ki ngā terema parakore, ka taea te whakakī puhoi i te kāinga, i te kamupene rānei, ka taea anake te whakakī i ngā waka hauwai i te teihana whakahauwai, nō reira he nui ake te hiahia mō te teihana whakakī. Ki te kore he whatunga whakahauwai katoa, kāore e taea te whanaketanga o te umanga waka hauwai.
Wā tuku: Paenga-whāwhā-02-2021