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Author Question: If two machines have the same first-law efficiency, they must also have the same second-law ... (Read 12 times)

waynest

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on: Jul 28, 2018
If two machines have the same first-law efficiency, they must also have the same second-law efficiency.
 
  What will be an ideal response?

Question 2

Nuclear reactors are bombs waiting to go off.
 
  What will be an ideal response?


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chjcharjto14

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Reply #1 on: Jul 28, 2018
Answer to Question 1

Not so. There are differences between the first law and second-law efficiencies.
Not every system with the same first-law efficiency must have the same second-law
efficiency.

Answer to Question 2

Absolutely not. The fissile material is not nearly dense enough, at about 4, to
explode. Bomb-quality uranium has > 90 uranium-235.


waynest

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

kthug

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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