As a scuba diver descends under water, the pressure increases. At a total air pressure of 2.58 bar and a temperature of 25.0 ∘C, what is the solubility of N2 in a diver's blood? [Use the value of the Henry's law constant k calculated in Part A, 6.10×10−4mol/(L⋅bar).]Assume that the composition of the air in the tank is the same as on land and that all of the dissolved nitrogen remains in the blood.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

im pretty sure its b