Definieer die term elektrolise - NSC Physical Sciences - Question 9 - 2020 - Paper 2
Question 9
Definieer die term elektrolise.
Watten komponent in die diagram dui aan dat dit ‘n elektroliese sel is?
Skryf die NAAM of FORMULE van die elektroliet neer.
Hoe ... show full transcript
Worked Solution & Example Answer:Definieer die term elektrolise - NSC Physical Sciences - Question 9 - 2020 - Paper 2
Step 1
Definieer die term elektrolise.
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Answer
Elektrolyse is die chemiese proses waarin elektriese energie omgeskakel word na chemiese energie. Dit behels die afbreek van 'n ioniese verbinding deur middel van elektriese energie.
Step 2
Watten komponent in die diagram dui aan dat dit ‘n elektroliese sel is?
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Answer
Die battery of kragbron in die diagram dui aan dat dit 'n elektroliese sel is.
Step 3
Skryf die NAAM of FORMULE van die elektroliet neer.
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Die elektroliet kan 'n soutoplossing wees, soos silvernitraat (AgNO₃) of enige ander ioniese verbinding in oplossing.
Step 4
Hoe sal die konsentrasie van die elektroliet tydens elektrolise verander? Kies uit TOENEEM, AFNEEM of BLY DIESELFDE.
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Answer
Die konsentrasie van die elektroliet sal AFNEEM tydens elektrolise.
Step 5
Gee ‘n rede vir die antwoord.
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Die konsentrasie neem af omdat ioniese verbindinge in die oplossing afgebroke word terwyl die elektrolise plaasvind.
Step 6
Skryf die gebalanseerde vergelyking van die halfreaksie neer wat by die silwer-elektrode plaasvind.
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Die gebalanseerde halfreaksie by die silwer-elektrode is:
