Acetone is a ______ phase fuel.

Acetone is a ______ phase fuel.

• A. Gas
• B. Liquid
• C. Solid
• D. Plasma

Answer: (B)

Acetone is a liquid at room temperature, so it is used and described as a liquid phase fuel. The reason is its physical state under ordinary conditions: its melting point is very low and its boiling point is about 56°C, so it exists as a liquid most of the time and readily forms flammable vapors. While it can produce gas phases when it evaporates, the fuel in practical use is the liquid form. Solid acetone isn’t typical at room temperature, and plasma is an ionized state not relevant for standard fuel classifications. So the best description is that acetone is a liquid phase fuel.

Acetone is a liquid at room temperature, so it is used and described as a liquid phase fuel. The reason is its physical state under ordinary conditions: its melting point is very low and its boiling point is about 56°C, so it exists as a liquid most of the time and readily forms flammable vapors. While it can produce gas phases when it evaporates, the fuel in practical use is the liquid form. Solid acetone isn’t typical at room temperature, and plasma is an ionized state not relevant for standard fuel classifications. So the best description is that acetone is a liquid phase fuel.