A tank contains 100L of water. A solution with a salt concentration of 0.6kg/L is added...

Question

Question

A tank contains 100L of water. A solution with a s

Answer 1

Answer #1

Adding salt solution = 0.6 x 7 x t

removing = 5 x t x concentration

concentration = 0.6 x 7 x t/(100+(7 x t))

dy/dt = (0.6 x 7 x t) - [5 x t x {0.6 x 7 x t/(100+(7 x t))}]

After 40 min the answer is

(0.6 x 7 x 40) - [5 x 40 x {0.6 x 7 x 40/(100+(7 x 40)}]

= 79.6 Kg

Answer 2

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