Tabulating the z factors and ideal volumes at each pressure value and find out 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.