What is the total heating value after vaporization in BTU per cubic foot?

The total heating value after vaporization in BTU per cubic foot is a measure of the energy content of a fuel after it has been converted from a liquid to a gas. This is important for various applications, including heating and energy generation.

In this context, the correct value of 2,488 BTU per cubic foot reflects the energy release that occurs when the fuel vaporizes. This number represents the total amount of energy that can be extracted from a unit volume of the substance under specific conditions after it has fully vaporized.

The values provided in the other choices do not accurately represent the energy content for the substance in question after vaporization, which is critical for applications where precise energy calculations are necessary, such as in designing heating systems or understanding fuel efficiency.