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Author Question: The normal boiling point of C2Cl3F3 is 47.6 C and its molar enthalpy of vaporization is 27.49 ... (Read 86 times)

urbanoutfitters

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on: Aug 27, 2018
The normal boiling point of C2Cl3F3 is 47.6 C and its molar enthalpy of vaporization is 27.49 kJ/mol. What is the change in entropy in the system in J/K when 28.6 grams of C2Cl3F3 vaporizes to a gas at the normal boiling point?
 
  A) -13.1
  B) -4.19
  C) 4.19
  D) 13.1
  E) 27.5

Question 2

Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: N2 (g) + 3H2 (g)  2NH3 (g) A 9.3-g sample of hydrogen requires ________ g of N2 for a complete reaction.
 
  Fill in the blank(s) with correct word

Question 3

Of the elements below, ________ is the least metallic.
 
  A) Ne
  B) F
  C) Cl
  D) O
  E) S


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jamesnevil303

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

D

Answer to Question 2

43

Answer to Question 3

A


urbanoutfitters

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Reply 2 on: Aug 27, 2018
Thanks for the timely response, appreciate it

Jsherida

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Reply 3 on: Yesterday
Excellent

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