Definieer die term elektroli-se sel - NSC Technical Sciences - Question 5 - 2024 - Paper 2
Question 5
Definieer die term elektroli-se sel.
Skryf die NAAM of FORMULE neer van die metaal wat as die anode gebruik word.
Watter elektrode, A of B, is die katode? Gee 'n r... show full transcript
Worked Solution & Example Answer:Definieer die term elektroli-se sel - NSC Technical Sciences - Question 5 - 2024 - Paper 2
Step 1
Definieer die term elektroli-se sel.
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Answer
Die elektroli-se sel is 'n (elektrochemiese) sel wat elektriese energie omskakel na chemiese energie.
Step 2
Skryf die NAAM of FORMULE neer van die metaal wat as die anode gebruik word.
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Answer
Die metaal wat as die anode gebruik word is Chroom.
Step 3
Watter elektrode, A of B, is die katode? Gee 'n rede.
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Answer
Die katode is elektroda B, aangesien dit 'n elektrode is waar reduksie plaasvind.
Step 4
Skryf die halfreaksie neer wat by die volgende elektrode plaasvind: 5.4.1 A
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Answer
Die halfreaksie by elektroda A is:
Cr→Cr3++3e−
Step 5
Skryf die halfreaksie neer wat by die volgende elektrode plaasvind: 5.4.2 B
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Answer
Die halfreaksie by elektroda B is:
Cr3++3e−→Cr
Step 6
Waarom word die GS-bron bo die WS-bron verkies?
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Answer
Die GS-bron word verkies omdat dit 'n konstante stroom verskaf, terwyl die WS-bron afwisselende toestande het.
