3. Calculate the increase in entropy when mixing VA m3 of gas A at temperature TA and VB m3 of gas B at temperature TB. The process is carried out at V = const. Assume that these substances obey the laws of ideal gases, the initial pressure is 1.013 * 105 Pa, the final pressure of the mixture is P.
Option Gas A VA*104, m3 TA,K Gas B VB*104, m3 TB,K P, Pa
1 H2 1 303 N2 2 290 101325

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