Table 5:
Activation parameters for mild steel corrosion in 1.0 M HCl in the absence and presence of different concentrations of ATP
C (M)
E
a
(kJ mol
-1
)
ΔH
*
a
(kJ mol
-1
)
ΔS
*
a
(J mol
-1
K
-1
)
Blank Solution
00
40.53
37.93
-66.50
ATP
10
-6
10
-5
5×10
-5
10
-4
10
-3
50.32
50.47
52.46
54.05
50.62
46.79
47.87
49.86
51.45
48.02
-54.66
-51.61
-47.19
-44.00
-50.21