UAE Neem Extract as a Corrosion Inhibitor for Carbon Steel in HCl Solution

Table 9

The change in entropy (Δ𝑆) for carbon steel in 1.0 M HCl in the presence of the aqueous extract of (2.0 g/L) Neem leaves at various temperatures (303 K−343 K).

Δ𝑆, kcal⋅K^-1⋅mol^-1
303 K	313 K	323 K	333 K	343 K
0.110	0.107	0.0988	0.0926	0.0820