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The saturation concentration of dissolved oxygen in freshwater can be calculated with the equation: ln(o_s f) = -139. 34411 + 1.575701 times 10^5/T_a - 6.642308
The saturation concentration of dissolved oxygen in freshwater can be calculated with the equation: ln(o_s f) = -139. 34411 + 1.575701 times 10^5/T_a - 6.642308 times 10^7/T^2_ a + 1.243800 times 10^10/T^3_a - 8.621949 times 10^11/T^4_a where o_sj = the saturation concentration of dissolved oxygen in freshwater at 1 atm (mg L^-1). and Ta = absolute temperature (K) where T_a = T + 273.15 where T = temperature (degree C). According to this equation, saturation decreases with increasing temperature. For typical natural waters in temperate climates, the equation can be used to determine that oxygen concentration ranges from 14.621 mg/L at 0 degree C to 6.949 mg/L at 35 degree C. Given a value of oxygen concentration, this formula and the bisection method can be used to solve for temperature in degree C. If the initial guesses are set as 0 and 35 degree C, how many bisection iterations would be required to determine temperature to an absolute error of 0.05 degree C? Based on (a), develop and test a bisection M-file function to determine T as a function of a given oxygen concentration. Test your function for o_sj = 8. 10 and 14 mg/L. Check your results
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