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Author Question: A compound decomposes by a first-order process. If 17.0 of the compound decomposes in 30 minutes, ... (Read 90 times)

justinmsk

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on: Aug 27, 2018
A compound decomposes by a first-order process. If 17.0 of the compound decomposes in 30 minutes, the half-life of the compound is ________.
 
  A) 112 minutes
  B) 12 minutes
  C) 8 minutes
  D) 223 minutes
  E) 56 minutes

Question 2

Which one of the following processes produces a decrease of the entropy of the system?
 
  A) dissolving sodium chloride in water
  B) sublimation of naphthalene
  C) dissolving oxygen in water
  D) boiling of alcohol
  E) explosion of nitroglycerine


paavo

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

A

Answer to Question 2

C


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justinmsk

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


paavo

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


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