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 Magyar Information Contest Journal Articles

# Problem P. 3785. (March 2005)

P. 3785. We cool down ideal gas of molar heat capacity of CV=20 J/(mol.K) at a constant pressure of 100 kPa. The initial volume of 1 m3 of the gas is halved in the course of cooling. How much heat is emitted by the gas during cooling? What kind of gas can it be?

(4 pont)

Deadline expired on 11 April 2005.

### Statistics:

 135 students sent a solution. 4 points: 93 students. 3 points: 5 students. 2 points: 12 students. 1 point: 13 students. 0 point: 8 students. Unfair, not evaluated: 4 solutions.

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