London Dispersion Forces (Leaving Cert Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What causes London dispersion forces between molecules?
What causes London dispersion forces between molecules?
Formation of temporary dipoles
Which statement about London dispersion forces is correct?
Which statement about London dispersion forces is correct?
Only forces between non-polar molecules
Do London dispersion forces exist in polar molecules?
Do London dispersion forces exist in polar molecules?
Yes, in all molecules
What creates a temporary dipole in a molecule?
What creates a temporary dipole in a molecule?
Uneven electron distribution
What is induction in London dispersion forces?
What is induction in London dispersion forces?
Temporary dipole causing induced dipoles
How long do temporary dipoles exist?
How long do temporary dipoles exist?
Very short time (instantaneous)
How do larger molecules affect London dispersion forces?
How do larger molecules affect London dispersion forces?
Stronger forces, higher boiling points
What is the boiling point of (iodine)?
What is the boiling point of (iodine)?
184°C
Why do molecules with more electrons have stronger London dispersion forces?
Why do molecules with more electrons have stronger London dispersion forces?
Bigger electron clouds form larger dipoles
How does molecular shape affect London dispersion forces?
How does molecular shape affect London dispersion forces?
Larger surface area = stronger forces
What is polarisability?
What is polarisability?
How easily electron cloud is distorted
Why does have a higher boiling point (-183°C) than (-253°C)?
Why does have a higher boiling point (-183°C) than (-253°C)?
has more electrons and larger atoms