Does The Chain Length Of An Alcohol (4 Or 5 Carbon Atoms) Affect Its Boiling Point

Fuels

Research Question
How does the chain length of an alcohol (1, 2, 3, 4 or 5 carbon atoms) affect its boiling point (°C), determined using micro boiling point apparatus (heating the liquid in a capillary tube placed in paraffin oil)?
The alcohols tested will be methanol (1 carbon atom), ethanol (2 carbon atoms), propan-1-ol (3 carbon atoms), butan-1-ol (4 carbon atoms) and pentan-1-ol (5 carbon atoms).

Variables Variable Description
Independent This is the variable that will change; the chain length of the alcohol. The chain length will be changed by using different alcohols, each alcohol has a different number of carbon atoms; methanol (1 carbon atom), ethanol (2 carbon atoms), propan-1-ol (3 carbon atoms), butan-1-ol (4 carbon atoms) and pentan-1-ol (5 carbon atoms).
Dependent
The boiling point of the alcohols will be determined using micro boiling apparatus. A small quantity of alcohol will be inserted into the capillary tube that will then be placed faced down into a Thiele tube filled with paraffin oil. When the test tube is heated, air in the capillary tube expands and bubbles begin escaping. Once the boiling point of the alcohol has been exceeded, bubbles stop forming. Heating is then stopped and as it cools, liquid is drawn up the capillary tube. This precise moment corresponds to the boiling point of the