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Author Question: The first law of thermodynamics states that heat added to a closed system can change the internal ... (Read 14 times)

vinney12

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on: Jul 28, 2018
The first law of thermodynamics states that heat added to a closed system can change the internal energy of the system and/or do ______________.
 Fill in the blank(s) with correct word

Question 2

The half-life of 131I is 8.04 days. Three days after it was prepared, its activity was 0.50 Ci. How many curies (in Ci) were initially prepared?
 a. .60
  b. .70
  c. .65
  d. .55
  e. .39


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Sarahjh

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

work

Answer to Question 2

c


vinney12

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

okolip

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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