# 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.**

### Statistics:

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