Determine the change in entropy when mixing 1 mol of argon taken at Tar = 293 K and Par ° = 1.0133 * 105 Pa with 2 mol of nitrogen at P ° n2 = 1.0133 * 106 Pa and Tn2 = 323 K. Pressure of the mixture is equal to Pcm = 1.0133 * 106 Pa. Take argon and nitrogen as ideal gases, and the heat capacity of each gas as a constant value in the specified temperature range and equal for nitrogen Cv = 20.935 J / (mol * K), for argon Cv = 12.561 J / (mol * K).
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