137. Solving a chemistry problem

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Determine the change in entropy upon mixing 1 mol of argon taken at TAr = 293 K and = 1.0133 105 Pa with 2 mol of nitrogen at = 1.0133 105 Pa and = 323 K. The pressure of the mixture is Pcm = 1, 0133 ∙ 105 Pa. Take argon and nitrogen as ideal gases, and the heat capacity of each gas - a value that is constant in the specified temperature range and equal for nitrogen Cv = 20.935 J / (mol ∙ K), for argon Cv = 12.561 J / (mol ∙ K) ...