Question

Which expression gives the total number of gas particles (NOT moles, but individual particles) found in the lungs of an average human (V = 6.0 L) under normal physiological conditions (P = 1.0 atm, T = 37ºC)?

Answer 1

`particles=1.42x10^(23)`

Step-by-step explanation:

Hello there!

In this case, according to the given information, it turns out possible for us solve this problem by using the ideal gas law:

`PV=nRT`

Which can be modified to include the particles in terms of the Avogadro's number:

`PV=(particles)/(N_A) RT`

Thus, if we solve for the particles, we will obtain the expression and the numerical result:

`particles=(PV*N_A)/(RT)`

`particles=(1.0atm*6.0L*6.022x10^(23))/(0.08206(atm*L)/(mol*K)*310K) \\\\particles=1.42x10^(23)`

Regards!