Задача id12892

A glass balloon connected to a vacuum pump contained droplets of mercury with a total mass of 0.87 g. The balloon was placed in an oven at a temperature of 120° C. The pump capacity was 7 l/min. What is the pressure of saturating mercury vapor at 120°C if the pressure in the cylinder drops sharply after 20 minutes of pump operation? The molecular weight of mercury is 200.

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