Mathematical and Physical Journal
for High Schools
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# Problem P. 4688. (December 2014)

P. 4688. A thermally insulated container is divided into two parts by a wall of negligible volume. The volume of the two parts are 2 dm$\displaystyle {}^3$ and 3 dm$\displaystyle {}^3$. In the 2 dm$\displaystyle {}^3$ part there is a sample of Helium gas at a temperature of 300 K and at a pressure of $\displaystyle 2\cdot10^5$ Pa, and in the other part there is a sample of Oxygen gas at a temperature of 200 K and at a pressure of $\displaystyle 10^5$ Pa. What will the temperature and the pressure of the mixture of gases if the wall is eliminated?

(4 pont)

Deadline expired on January 12, 2015.

### Statistics:

 100 students sent a solution. 4 points: 68 students. 3 points: 2 students. 2 points: 3 students. 1 point: 17 students. 0 point: 10 students.

Problems in Physics of KöMaL, December 2014