Chapter 17 : The Debye Huckel Theory

Example 17.1 Page No : 416

In [1]:
# Variables
import math 
s = 1.771*10**-4 			#mole litre**-1
s1 = 0.3252*10**-2 			#mole litre**-1

# Calculations
S = s*10**(0.509*(math.sqrt(s+s1)-math.sqrt(s)))

# Results
print  'Solubility  = %.2e mole litre**-1'%(S)

Solubility  = 1.87e-04 mole litre**-1

Example 17.2 Page No : 420

In [2]:
# Variables
import math 
a = 0.1

# Calculations
r = 10**(-0.509*math.sqrt(a)/(1+math.sqrt(a)))

# Results
print  'mean ionic acctivity coefficient  = %.3f '%(r)

mean ionic acctivity coefficient  = 0.755
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