Basic isomers

Question 1

What are isomers?

Answer 1

Compounds that have the same molecular formula, but their atoms are arranged in different spaces

Question 2

What are structural Isomers?

Answer 2

Molecules that have same molecular formula but different structural formula

Question 3

What is the definition of position isomers?

Answer 3

They have the same functional group but different positions

Question 4

What is the definition functional group isomers?

Answer 4

Same molecular formula, but different functional group.

Question 5

What happens to boiling point as we increase chain length?

Answer 5

1. Longer chains have more surface area of contact between molecules so higher boiling point
2. So there are more London dispersion forces
3. Therefore more energy needed to break the dispersion forces

Question 6

What happens to boiling point as we increase branching?

Answer 6

1. A branched alkane chain has a smaller surface area of contact between molecules
2. So there are fewer London dispersion forces between molecules so lower boiling point
3. Therefore less energy needed to break the molecules