KöMaL - Mathematical and Physical Journal for Secondary Schools
Hungarian version Information Contest Journal Articles News
Entry form to the contest
Problems and solutions
Results of the competition
Problems of the previous years



Order KöMaL!




Emberi Erőforrások Minisztériuma

Emberi Erőforrás Támogatáskezelő

Oktatáskutató és Fejlesztő Intézet


Competitions Portal

P. 3840. A sample of gas was compressed to a volume of 20 l adiabatically so the gas did not release or absorbe heat. The initial pressure was 101.3 kPa and was increased by 76.4% during the process. a) Calculate the change in the energy of the gas. b) Find the change of the entropy of the gas. c) By what factor did the absolute temperature of the gas increased?

(4 points)

Deadline expired on 12 December 2005.

Statistics on problem P. 3840.
112 students sent a solution.
4 points:67 students.
3 points:21 students.
2 points:10 students.
1 point:10 students.
0 point:3 students.
Unfair, not evaluated:1 solution.

  • Problems in Physics of KöMaL, November 2005

  • Our web pages are supported by: Ericsson   Google   SzerencsejátĂ©k Zrt.   Emberi ErĹ‘források MinisztĂ©riuma   Emberi ErĹ‘forrás TámogatáskezelĹ‘   OktatáskutatĂł Ă©s FejlesztĹ‘ IntĂ©zet   ELTE   Nemzeti TehetsĂ©g Program