Mathematical and Physical Journal
for High Schools
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Problem P. 3840. (November 2005)

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 pont)

Deadline expired on December 12, 2005.


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