7. The figure below represents three sealed 2.0 L vessels, each containing different gases at 298 K. The pressure of CO, in the first vessel is 100. kPa. After all the gases are combined in a previously evacuated 2.0L vessel, what is the total pressure of the gases at 298 K, assuming no reactions occur between gas molecules? 图国圈 CO. 0, 2L N, 2L 2L 4L a. 700. kPa b. 350. kPa с. 175 kPa d. 600. kPa

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