Skryf die volgende vir die ondersoek neer:
3.1.1 Ondersoekende vraag
3.1.2 Onafhanklike veranderlike
3.1.3 Afhanklike veranderlike
3.1.4 Gekontroleerde veranderlike
3.2 Voordat die ondersoek uitgevoer is, het die leerders die volgende hipoteses neergeskryf:
Hoe swakker die intermolekulêre kragte, hoe hoër die kookpunt - NSC Technical Sciences - Question 3 - 2022 - Paper 2
Question 3
Skryf die volgende vir die ondersoek neer:
3.1.1 Ondersoekende vraag
3.1.2 Onafhanklike veranderlike
3.1.3 Afhanklike veranderlike
3.1.4 Gekontroleerde veranderl... show full transcript
Worked Solution & Example Answer:Skryf die volgende vir die ondersoek neer:
3.1.1 Ondersoekende vraag
3.1.2 Onafhanklike veranderlike
3.1.3 Afhanklike veranderlike
3.1.4 Gekontroleerde veranderlike
3.2 Voordat die ondersoek uitgevoer is, het die leerders die volgende hipoteses neergeskryf:
Hoe swakker die intermolekulêre kragte, hoe hoër die kookpunt - NSC Technical Sciences - Question 3 - 2022 - Paper 2
Step 1
Ondersoekende vraag
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Answer
The relationship between chain length/molecular mass/surface area and boiling point in alkanes.
Step 2
Onafhanklike veranderlike
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Answer
Chain length/molecular mass/surface area.
Step 3
Afhanklike veranderlike
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Answer
Boiling point.
Step 4
Gekontroleerde veranderlike
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Answer
Factors such as temperature and pressure should be kept constant during the experiment.
Step 5
Voordat die ondersoek uitgevoer is, het die leerders die volgende hipoteses neergeskryf:
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Answer
The hypothesis states that the weaker the intermolecular forces, the higher the boiling point.
Step 6
Skryf die NAAM neer van die intermolekulêre kragte, hoe laer die kookpunt.
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Answer
The intermolecular forces referred to are London dispersion forces.
Step 7
Kookpunt: Skryf die waarde van die kookpunt
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Answer
The boiling point values from the table are: C2H6 has a boiling point of -89°C, C3H8 has -42°C, and C4H10 has -0.5°C.
