Question

(a) Determine the specific volume of nitrogen gas at 8.5 MPa and 139 K based on the generalized compressibility chart (Fig. A-15) and compare this result with the experimental value of 0.002002 m3/kg to (b) determine the error involved. (R = 0.2968 kPa.m3/kg.K, Tcr=126.2 K, Pcr=3.39 MPa)v

Answer 1

Answer:v=0.0485m^3/kg

Explanation:

PV=MRT

PV/M=RT

Pv=RT

P=8.5mpa= 850Kpa

T= 139K

v= RT/P

0.2968*139/850

v=0.0485m3/kg

Error

0.0485-0.002002/0.0485*100%

95%