Indicate whether you will need to adopt a kinetic or equilibrium approach for determining mass balance in the following cases:

Indicate whether you will need to adopt a kinetic or equilibrium approach for determining mass balance in the following cases:

i)         To determine the adsorption of an organic compound from water to activated carbon.

ii)        To determine the concentration of a pollutant in a room due to continuous emission in indoor air.

iii)       To determine the dissolution of oxygen in an aquatic system.

iv)       To determine the phosphorus balance in a lake.