Tabulating the z factors and ideal volumes at each pressure value and calculate the specific gas gravity of the gas.
A cylinder is fitted with a leak proof piston and calibrated so that the volume within cylinder can be read from a scale for any position of the piston. The cylinder is immersed in a constant-temperature bath maintained at 160 F. About 45,000 cm3 of the gas, measured at 14.7 psia and 60 F is charged into the cylinder. The volume is decreased in the steps indicated below, and the corresponding pressures are read with a dead-weight tester after temperature equilibrium is reached.
1. Compute and place in tabular form the z factors and the ideal volumes that the initial 45,000 cm3 occupies at 160 F and at each pressure.
2. Compute the specific gas gravity of the gas.
|
Ppsia
|
Vcm3
|
|
300.0
|
2,529.0
|
|
750.0
|
964.0
|
|
1500.0
|
453.0
|
|
2500.0
|
265.0
|
|
4000.0
|
180.0
|
|
5000.0
|
156.5
|
|
6000.0
|
142.2
|