Question

15. What happens to the boiling point of hydrocarbon compounds when the number
of carbon atoms increases?
a.Remains the same
b. Decreases
c. Increases
d. Increases then decreases​

Answer 1

Answer:

increase

Explanation:

The boiling points of alkanes increase withincreasing number of carbons. This is because the intermolecular attractive forces, although individually weak, become cumulatively more significant as thenumber of atoms and electrons in the molecule increases.

Answer 2

The correct answer is boiling point increase (option c).

• Hydrocarbon is the chemical compound that essentially has carbon and hydrogen in their structure and the atoms are linked covalently to each other.
• They are classified as saturated and unsaturated and the number of carbon atoms increases in the particular family.
• Because of the intermolecular force of attraction, they have a distinct boiling point which is given by the temperature to overcome these forces and change its state of matter from solid to liquid.
• As there is an increase in the number of carbon atoms, the number of the chemical bond increases with an increase in interatomic forces.
• Therefore there is a rise in boiling point with an increased number of carbon atoms.