Chapter6-The Solid state

Ex1-pg177

In [1]:
import math
##Intitalisation of variables

d1= 5.9 ##deg
d2= 5.3 ##deg
##CALCULATIONS
r= math.sin(d1/57.3)/math.sin(d2/57.3)
vr= r**3
##RESULTS
print'%s %.2f %s'% ('Ratio of inter planar distance = ',r,'')
print'%s %.2f %s'% ('\n Ratio of volumes = ',vr,'')
Ratio of inter planar distance =  1.11 

 Ratio of volumes =  1.38 

Ex2-pg191

In [2]:
import math
##Intitalisation of variables
svl= 1.0001 ##cc/gram
svi= 1.0907 ##cc/gram
T= 0.##C
Hf= 79.8 ##cal/gram
p= 76. ##mm
sp= 13.595
g= 980.7 ##cm/sec^2
##CALCULATIONS
r= -(273.2+T)*(svl-svi)*p*sp*g/(Hf*4.184*10**7)
##RESULTS
print'%s %.2f %s'% ('Decrease in melting point = ',r,' per atm')
Decrease in melting point =  0.01  per atm