What is the volume of 6.9 mol oxygen (O2) gas at 233 K and a pressure of 4.0 atm?(The universal gas constant is 0.0821 L•atm/mol•K.)A.0.30 LB.33 LC.11 LD.530 LSUBMITarrow_backPREVIOUS
Question
What is the volume of 6.9 mol oxygen (O2) gas at 233 K and a pressure of 4.0 atm?(The universal gas constant is 0.0821 L•atm/mol•K.)A.0.30 LB.33 LC.11 LD.530 LSUBMITarrow_backPREVIOUS
Solution
Para resolver este problema, utilizaremos la ecuación del gas ideal, que es:
Donde:
- es la presión (en atmósferas, atm)
- es el volumen (en litros, L)
- es el número de moles
- es la constante universal de los gases (0.0821 L·atm/mol·K)
- es la temperatura (en Kelvin, K)
Dado:
- moles
- K
- atm
- L·atm/mol·K
Queremos encontrar . Reorganizamos la ecuación para resolver :
Sustituimos los valores dados:
Primero, calculamos el numerador:
Luego, dividimos por el denominador:
Redondeando a dos cifras significativas, obtenemos:
Por lo tanto, la respuesta es:
B. 33 L
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