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Author Question: The EROEI for ethanol has been estimated to be between 1.67:1 to 0.78:1. Which of the following is ... (Read 53 times)

ss2343

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on: Aug 27, 2018
The EROEI for ethanol has been estimated to be between 1.67:1 to 0.78:1. Which of the following is NOT a reason for the low ethanol EROEI values?
 
  A) Ethanol has a lower fuel content than petroleum fuels.
  B) Large amounts of energy are required to distill the ethanol after it is formed.
  C) Some ethanol is changed to methane (CH4 ) during the distillation process, so less ethanol is recovered.
  D) Ethanol is not easily available.

Question 2

In 1932, James Chadwick bombarded beryllium-9 with alpha particles. One product was a neutron. This led to the direct experimental verification of the existence of neutrons. The other product of Chadwick's nuclear reaction was
 
  A) nitrogen-14.
  B) carbon-12.
  C) boron-12.
  D) helium-4.


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flannelavenger

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Reply #1 on: Aug 27, 2018
Answer to Question 1

C

Answer to Question 2

B


ss2343

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Reply #2 on: Aug 27, 2018
Both answers were spot on, thank you once again


flannelavenger

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Reply #3 on: Aug 27, 2018
Great! Please up vote :D


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