El volumen del aire en los pulmones de una persona es de 615 ml aproximadamente, a una presión de 760 mm Hg. La inhalación ocurre cuando la presión de los pulmones desciende a 752 mm Hg. ¿A qué volumen se expanden los pulmones?

The volume of air in a person's lungs is about 615 ml, at a pressure of 760 mm Hg. Inhalation occurs when the pressure in the lungs drops to 752 mm Hg. To what volume do the lungs expand?

621.5mL

Explanation:

Given parameters:

Initial volume  = 615mL

Initial pressure  = 760mmHg

Final pressure  = 752mmHg

Unknown;

Final volume  = ?

Solution:

To solve this problem, we simply apply Boyle's law.

"the volume of a fixed mass of a gas varies inversely as the pressure changes if the temperature is constant".

    Mathematically;

              P₁V₁  = P₂V₂

P and V are the pressure

1 and 2 are the initial and final states

 Now insert the parameters and start;

               760 x 615  = 752 x V₂

                   V₂ = 621.5mL

lol idk man i guess u gotta ask bill nye the science guy

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.