A vessel of cylindrical shape, 50 cm diameter and 75 cm height, contains 4 kg of a gas. The pressure gauge?

Question

mounted on the vessel indicates 620 mm of mercury above atmosphere. If the barometer reading is 760 mm of mercury, calculate the absolute pressure of gas in bar. Also determine the density and specific volume of the gas?

Answer 1

1.82 bar, 27.2 g/L, 36.8 mL/g

Be sure to show your work.

Answer 2

Absolute pressure = Total pressure exerted on the system. So in this case;

Absolute pressure = Atmospheric pressure + Gauge pressure.

I am sure you know how to calculate the volume of the gas, so after you calculate the volume;

Specific volume = Volume/Mass.

Density is just the reciprocal of the Specific volume. Thus, the problem solves.

All the best!!!!