Question

Assuming that the world population is 7 billion people and the total world primary energy consumption is about 490 exajoules per year, what is world primary energy consumption per capita per year in, gigajoules

Answer 1

The world primary energy consumption per capita per year is 70 gigajoules, which is calculated by converting the total energy consumption from exajoules to gigajoules and dividing by the world population.

Step-by-step explanation:

To calculate the world primary energy consumption per capita per year, we need to convert the total energy consumption from exajoules to gigajoules and then divide by the world population. Given that the world population is approximately 7 billion people and the total world primary energy consumption is about 490 exajoules:

• 1 exajoule = 1,000,000 gigajoules (1 EJ = 106 GJ)
• Total energy consumption in gigajoules (GJ) = 490 exajoules * 1,000,000 GJ/exajoule = 490,000,000 GJ
• Energy consumption per capita in GJ = Total energy consumption in GJ / World population
• Energy consumption per capita in GJ = 490,000,000 GJ / 7,000,000,000 people = 70 GJ/person/year

Therefore, the average energy consumption per capita is 70 gigajoules per year.