How many tons of lignite coal are required to equal the energy content of 1 cord of Pinon Pine?

To determine how many tons of lignite coal are needed to match the energy content of one cord of Pinon Pine, it's important to understand the energy values of these materials.

Pinon Pine is known for its high energy content due to its density and oil content, typically providing around 25 million British Thermal Units (BTUs) per cord. Lignite coal, on the other hand, has a lower energy content, averaging around 10-15 million BTUs per ton, depending on its moisture content and specific characteristics.

In this case, to match the energy output of one cord of Pinon Pine, you would calculate the number of tons of lignite coal required by dividing the total BTU content of the wood by the BTUs per ton of the lignite coal. Given that it typically requires approximately 2.4 tons of lignite coal to achieve the same energy output as 1 cord of Pinon Pine, the correct choice is indeed 2.4 tons.

This calculation reflects the relative energy densities of the materials involved, with the correct answer aligning with estimated averages in the energy industry for lignite coal and Pinon Pine. Understanding these values helps in assessing energy sources more effectively and making informed decisions about fuel choices.