Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation

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Problem P. 4492. (December 2012)

P. 4492. A sample of monatomic ideal gas is taken through the cyclic process shown in the figure. The temperature of the gas at state A is T_A=180 K. What is the temperature of the gas at state C if the efficiency of the heat engine of this cyclic process is $\eta$ =2/9?

(4 pont)

Deadline expired on January 10, 2013.

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

Megoldásvázlat. $\displaystyle T_C=1620$ K.

Statistics:

66 students sent a solution.

4 points: 52 students.

3 points: 1 student.

2 points: 5 students.

1 point: 6 students.

Unfair, not evaluated: 2 solutionss.

Problems in Physics of KöMaL, December 2012

66 students sent a solution.
4 points:	52 students.
3 points:	1 student.
2 points:	5 students.
1 point:	6 students.
Unfair, not evaluated:	2 solutionss.