47. Решение задачи по химии №004 789

3. An unknown gas is in the tank at 298 K; it is assumed that this is nitrogen or argon. With a sudden expansion of 5 * 10-3 (5 l) of this gas to 6 * 10-3 m3 (6 l), its temperature dropped by about 20 C. What gas is contained in the tank?

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