Final answer:
Energy Use Intensity (EUI) is calculated by dividing a country's total energy consumption by its Gross Domestic Product (GDP), typically resulting in units like MJ/$.
Step-by-step explanation:
The formula for Energy Use Intensity (EUI) is not explicitly stated in the information, but based on the provided concepts, we understand that EUI measures the energy use of a society relative to its economic scale, commonly its Gross Domestic Product (GDP). To calculate it, you would take the total energy consumption of a country (in Joules or equivalent energy units) and divide it by the country's GDP (in dollars or the relevant currency unit). A typical value for EUI might be 5 MJ/$, meaning for every dollar of economic output, 5 mega joules of energy are consumed.
For example, if the U.S. uses about 1020 Joules of energy per year and has a GDP of approximately 20 trillion dollars, the energy intensity, or EUI, would be 5 × 106 J/$. This ratio offers insights into how resource-heavy a country's economy is. To find the energy intensity for other countries, we would follow a similar process: Find the country's total energy consumption, convert it to Joules if necessary (using the conversion factor 1.055 × 1018 J/qBtu for energy amounts in quadrillion Btu), and then divide by the country's GDP.