Problem P. 4191. (October 2009)
P. 4191. A sample of Helium gas is cooled down at a pressure of 10^{5} Pa. The gas gives off 5 kJ heat. By how many litres did the volume of the gas decrease?
(4 pont)
Deadline expired on 10 November 2009.
Sorry, the solution is available only in Hungarian. Google translation
Megoldás. \(\displaystyle \Delta V=\frac{2Q}{5p_{0}}=0{,}02\,{\rm m^3}=20\,\)liter.
Statistics:
155 students sent a solution.  
4 points:  105 students. 
3 points:  20 students. 
2 points:  6 students. 
1 point:  3 students. 
0 point:  10 students. 
Unfair, not evaluated:  11 solutions. 
