Which of the following processes are nonspontaneous?

+3 votes

 

Which of the following processes are nonspontaneous?

 

bike going up a hill

 

 

 

nonspontaneous

 

spontaneous

 

 

 

a meteor falling to Earth

 

 

 

nonspontaneous

 

spontaneous

 

 

obtaining hydrogen gas from liquid water

 

 

 

nonspontaneous

 

spontaneous

 

 

a ball rolling down a hill

 

 

 

nonspontaneous

 

spontaneous

 

 

Are the nonspontaneous processes impossible?

 

 

 

Nonspontaneous processes are impossible.

 

Nonspontaneous processes are not impossible.

 

 

asked Mar 18, 2012 in General Chemistry by Joey33 ~Expert~ (1,216 points)
    

1 Answer

+3 votes
 
Best answer

 

A spontaneous process is one that occurs without ongoing outside intervention (such as the performance of work by some external force).
 

bike going up a hill: nonspontaneous

 

a meteor falling to Earth: spontaneous

 

obtaining hydrogen gas from liquid water: nonspontaneous

 

a ball rolling down a hill: spontaneous

 

Are the nonspontaneous processes impossible?

Nonspontaneous processes are not impossible

 

 

answered Mar 18, 2012 by pokemonmaster ~Expert~ (3,856 points)
selected Mar 18, 2012 by Joey33

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