en:hydro:nitrogen
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Nitrogen gas dissolution in water
The dissolution of nitrogen gas in (saline) water can be described empirically by
$$K = a_1 + a_2 \cdot \frac{100}{T_w} + a_3 \cdot ln(\frac{T_w}{100}) + S_a (b_1 + b_2 \cdot \frac{T_w}{100} + b_3 \cdot \frac{T_w}{100}^2)$$
# dissolution of nitrogen a1 = -59.6274 a2 = +85.7661 a3 = +24.3696 b1 = +0.051580 b2 = +0.026320 b3 = +0.0037252 Sa = 65 Tw = seq(12,18,.5) K1 = a1+a2*(100/Tw)+a3*log2(Tw/100) K2 = a1+a2*(100/Tw)+a3*log2(Tw/100)+Sa*(b1+b2*(Tw/100)+b3*(Tw/100)^2) plot(Tw,K1, col='blue', type='l') lines(Tw, K2, col="red",lty=2)
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