Question

Box models in chemical oceanography

1. (40 pts) Element 'X' is at steady state in the ocean. The main input of this element to the ocean is from rivers and the main output is stripping of the element from seawater during hydrothermal vent circulation (concentration of X in the return flow from the vents to the ocean is 0). The following is known: Volume of ocean: 1.4 x 10 L Xi: .0 x 10 mol L River flow to ocean: 3.2 x 10 L y' Xowaer1.0 x 103 mol L ivers A) Write out the mass balance equation for X under the given conditions. B) Calculate the rate of water flow through the hydrothermal vent system (Viv). C) Calculate the residence time for X under the given conditions.

Answer 1

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