He total power used by humans worldwide is approximately 15 TW (terawatts). Sunlight striking Earth provides 1.336 kW per square
meter (assuming no clouds). The surface area of Earth is approximately 197,000,000 square miles.
What percentage of the Earth's surface would we need to cover with solar energy collectors to power the planet for use by all humans? Assume that the solar energy collectors can only convert 10 % of the available sunlight into useful power.
1 answer:
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Three mole ratios can be written for a chemical reaction involving three substances
Each mole of N₂ generates 2 moles of Li₃N. Thus,
0.08 moles of Li₃N will require:
0.08 / 2
= 0.04 moles of N₂
The second option is correct.
Ca, V, Cu, Kr
Remember a period is a the horizontal rows in the Periodic Table.
Answer:
Carbon
Explanation:
The answer is B milliliter
