Page 808 - Fundamentals of Water Treatment Unit Processes : Physical, Chemical, and Biological

Pre-Appendix Tables 763

TABLE CDQR.5
Coefficients for Calculation of Variables—Exponential Best Fit Equations
Trial Formula
y-Variable x-Variable Limits Intercept Slope Argument Calculation
a
P(atmospheric) (Pa) Z (m) 0–5000 m 101,325 ######### 1000 89,363
3
b
r(atmospheric) (kg=m ) Z (m) 0–5000 m 1.225 ######### 0 1.23
c
3
r(atm) (mols=m ) Z (m) 0–5000 m 42.292 ######### 0 42.3
d
s(water) (N=m) T(8C) 08C–408C 0.076426 ######### 20 0.073
a
Atmospheric pressure (Pa) as function of elevation (m) above sea level.
b 3
Atmospheric density (kg=m ) as function of elevation (m) above sea level.
c 3
Atmospheric density (mols=m ) as function of elevation (m) above sea level.
d
Surface tension of water.
Calculation formula: y ¼ intercept 10 (slope x) .