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An AI training session uses 500 kWh of electricity from a source emitting 0.8 kg CO2 per kWh. What is the total CO2 emission?

medium📝 Analysis Q4 of 15
AI for Everyone - AI Ethics and Society
An AI training session uses 500 kWh of electricity from a source emitting 0.8 kg CO2 per kWh. What is the total CO2 emission?
A800 kg CO2
B625 kg CO2
C250 kg CO2
D400 kg CO2
Step-by-Step Solution
Solution:
  1. Step 1: Understand the formula

    Total CO2 = Electricity used (kWh) x Emission factor (kg CO2/kWh)
  2. Step 2: Calculate

    500 kWh x 0.8 kg CO2/kWh = 400 kg CO2
  3. Final Answer:

    400 kg CO2 -> Option D
  4. Quick Check:

    Multiply kWh by emission factor [OK]
Quick Trick: Multiply electricity by emission factor [OK]
Common Mistakes:
  • Multiplying emission factor by wrong kWh value
  • Adding instead of multiplying
  • Confusing units of measurement

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