An average adult has a total lung capacity of 6.0 l. how many total grams of air could be held in the lungs at a pressure of 102 kpa and a normal body temperature of 37° celsius? (assume that the average molar mass of air is 29 g/mol.)

The amount of air that could be held in lungs is 6.873g

Explanation:

To calculate the amount of air, we use the equation given by Ideal gas equation, which follows:

where,

P = Pressure of the gas = 102 kPa

V = volume of the gas = 6 L

n = number of moles of gas = ? mol

R = Gas constant =

T = temperature of the gas = 37°C = 310 K  (Conversion factor:

Putting values in above equation, we get:

To calcultae the mass of the air, we use the equation:

We are given:

Moles of air entered = 0.237 mol

Molar mass of air = 29 g/mol

Putting values in above equation, we get:

Hence, the amount of air that could be held in lungs is 6.873g

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.