As the number of carbons in the hydrocarbon increases, the boiling point
increases or decreases

Increases

Explanation:

As the number of carbons in the hydrocarbon increases, the boiling point of increases and volatility reduces.

The increasing number of carbon atoms increases the molecular mass and this will eventually lead to a higher boiling point.

With increasing chain length, hydrocarbons tends towards liquid and solid phases. This increase leads to a greater intermolecular interaction in the compound. Intermolecular forces determines the boiling point of hydrocarbons. This is why gasoline is easily combusted compared to lubricant oil.

Evaporation: this is when warmth from the sun causes water from oceans, lakes, streams, ice and soils to rise into the air and turn into water vapour (gas). water vapour droplets join together to make clouds! condensation: this is when water vapour in the air cools down and turns back into liquid water.

The answer is b on plato.