As shown in Fig. 16-2, two flasks are connected by an initially closed stopcock. One flask contains krypton gas at 500 mmHg, while the other contains helium at 950 mmHg. The stopcock is now opened so that the gases mix. What is the final pressure in the system? Assume constant temperature.

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Krypton 250 cm 500 mmHg 여 Fig. 16-2 Helium 450 cm 950 mmHg