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Author Question: Suppose 4 g of water at 100C is spread over a large surface so that 1 g evaporates rapidly. If ... (Read 64 times)

moongchi

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on: Aug 27, 2018
Suppose 4 g of water at 100C is spread over a large surface so that 1 g evaporates rapidly.
 
  If evaporation of the 1 gram takes 2,259 joules from the remaining 3 g of water and no other heat transfer takes place, what are the temperature and phase of the remaining 3 g once the 1 gram is completely evaporated? A) The remaining 3 g will turn to 10C , liquid.
  B) The remaining 3 g will turn to 20C liquid.
  C) The remaining 3 g will turn to -10C ice.
  D) The remaining 3 g will turn to 0C ice.

Question 2

At one time, halothane, C CHBrCl, was widely used as a general anesthetic. Suggest why its use is now banned.
 
  A) This chemical was found to be toxic to humans.
  B) This chemical did not mix well with oxygen so that the risk of suffocation was elevated.
  C) This chemical was found to be detrimental to stratospheric ozone.
  D) all of the above


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lorealeza

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

D

Answer to Question 2

C


moongchi

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Reply 2 on: Aug 27, 2018
Gracias!

ktidd

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

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