Problem P. 4178. (September 2009)
P. 4178. A piece of chocolate is dropped into a glass of soda water. The density of the chocolate is 1,2 g/cm^{3} and its volume is 2 cm^{3}. Carbondioxide bubbles begin to stick to the surface of the chocolate. What is the least total volume of the bubbles when the piece of chocolate begins to ascend?
(4 pont)
Deadline expired on 12 October 2009.
Sorry, the solution is available only in Hungarian. Google translation
Megoldás. \(\displaystyle 0,4~cm^3\).
Statistics:
239 students sent a solution.  
4 points:  200 students. 
3 points:  3 students. 
1 point:  2 students. 
0 point:  21 students. 
Unfair, not evaluated:  13 solutions. 
