Mathematical and Physical Journal
for High Schools
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# Problem P. 4470. (October 2012)

P. 4470. The containers of A and B are connected by a short and thin tube. The volume of container A is three times as much as that of container B. Initially in both containers there is air at a temperature of 20 oC and at a pressure of 105 Pa. Then container A is heated to a temperature of 100 oC, and is kept at this temperature while the temperature of B is still 20 oC. By what percent does the mass of the gas in each container change, and what will the pressure be in them?

(4 pont)

Deadline expired on November 12, 2012.

Sorry, the solution is available only in Hungarian. Google translation

Megoldásvázlat. Az $\displaystyle A$ tartályban 6,4 százalékkal csökken, a $\displaystyle B$ tartályban 19,2 százalékkal nő a gáz tömege.

### Statistics:

 139 students sent a solution. 4 points: 93 students. 3 points: 14 students. 2 points: 12 students. 1 point: 6 students. 0 point: 14 students.

Problems in Physics of KöMaL, October 2012