Mathematical and Physical Journal
for High Schools
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Problem P. 4160. (April 2009)

P. 4160. A heat engine, operating with monatomic ideal gas undergoes the cyclic process shown in the figure.

Find the efficiency of the engine in the following cases:

aV_{1}=\frac{5}{6}V_{0};

bV1=2V0;

cV1=3V0.

(5 pont)

Deadline expired on May 11, 2009.


Statistics:

37 students sent a solution.
6 points:Galzó Ákos Ferenc.
5 points:Barancsuk Lilla, Csányi Gergely, Filep Tibor, Fridrich Veronika, Hegedűs Csaba, Iván Dávid, Patartics Bálint, Pető János, Pinczei Emese, Tamási Mátyás, Trényi Róbert.
4 points:Bali-Papp Donát, Batki Bálint, Bodosi Eszter, Budai Ádám, Földes Imre, Hartstein Máté, Jéhn Zoltán, Kovács Márk, Lovas Lia Izabella, Para Attila, Török 999 Csaba, Varju 105 Tamás, Vuchetich Bálint.
3 points:3 students.
2 points:3 students.
1 point:3 students.
Unfair, not evaluated:3 solutions.

Problems in Physics of KöMaL, April 2009