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Equation of the gas state processes

Problem 2.1

A vessel of volume \(V=30\) l contains ideal gas at the temperature \(0^{\circ} \mathrm{C} .\) After a portion of the gas has been let out, the pressure in the vessel decreased by \(\Delta p=0.78\) atm (the temperature remaining constant). Find the mass of the released gas. The gas density under the normal conditions \(\rho=1.3 \mathrm{~g} / \mathrm{l}\).

Reveal Answer
m=ρVΔp/p0=30 g, where p0 is the standard atmospheric pressurem=\rho V \Delta p / p_{0}=30 \mathrm{~g}, \text { where } p_{0} \text { is the standard atmospheric pressure}
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