QUESTION IMAGE
Question
ley de los gases ideales pv=terapia de reemplazo de n- tratamiento (trn)
constante del gas ideal r = 8.314 \\(\frac{l kpa}{mol k}\\) o r = 0.0821 \\(\frac{l atm}{mol k}\\)
presión atmosférica estándar 1 atm = 101.3 kpa
conversión de celsius a kelvin k = °c + 273.15
un pulmón humano a su máxima capacidad tiene un volumen de 3.0 litros. si la presión parcial de oxígeno en el aire es de 21.1 kilopascales y la temperatura del aire es de 295 k, ¿cuántos moles de oxígeno hay en el pulmón?
a. 0.026 moles
b. 0.12 moles
do. 2.6 moles
d. 13 moles
Step1: Identify the ideal - gas law formula
The ideal - gas law is $PV = nRT$, where $P$ is pressure, $V$ is volume, $n$ is the number of moles, $R$ is the ideal - gas constant, and $T$ is temperature. We need to solve for $n$, so $n=\frac{PV}{RT}$.
Step2: Identify the values of $P$, $V$, $R$, and $T$
$P = 21.1\ kPa$, $V=3.0\ L$, $R = 8.314\frac{L\ kPa}{mol\ K}$ (since the pressure is in kPa), and $T = 295\ K$.
Step3: Substitute the values into the formula
$n=\frac{21.1\ kPa\times3.0\ L}{8.314\frac{L\ kPa}{mol\ K}\times295\ K}$.
First, calculate the numerator: $21.1\times3.0 = 63.3\ kPa\cdot L$.
Then, calculate the denominator: $8.314\times295=2452.63\frac{L\ kPa}{mol}$.
Now, $n=\frac{63.3\ kPa\cdot L}{2452.63\frac{L\ kPa}{mol}}\approx0.026\ mol$.
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A. 0.026 moles