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A volume of 1.0 L of air at 37°C is expelled from the lungs into cold surroundings at 5.6°C.
What volume in L) does the expelled air occupy at this temperature. The pressure and the number of
gas particles do not change.
L

If kept in Celsius: 0.15 L

If kept in Kelvin: 0.89 L = 0.90 L

Explanation:

This formula can be remembered by just remembering the ideal gas law formula, PV=nRT

P= pressure, V= volume, n= moles, R=constant, and T= temperature.

Let's take away what is constant, particles/moles, pressure, and R.

so what we have is P=T -> =x, we want to know how it changes though so we can say that . Where P1 and T1 are for the air in your lungs that you expel, the P2 and T2 is the air now in your surroundings after you exhale.

Let's plug it in and solve for V2.

V2

0.15 L = V2

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