Preexamen

Flashcard
•
Chemistry
•
12th Grade
•
Hard
Olivia Magaña
FREE Resource
Student preview

34 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Es la fórmula de los gases ideales
Back
PV= nRT
2.
FLASHCARD QUESTION
Front
La unidad de Temperatura para ejercicios de gases es:
Back
Kelvin
3.
FLASHCARD QUESTION
Front
El volumen de una muestra de oxígeno es 2.5 litros a 50°C. ¿Qué volumen ocupará el gas a 25°C, si la presión permanece constante?
Back
2,306 litros
4.
FLASHCARD QUESTION
Front
Una muestra de 200 ml de un gas a 20°C se expande hasta un nuevo volumen de 212 ml a presión constante. ¿Cuál es la temperatura final en °C?
Back
37.58
5.
FLASHCARD QUESTION
Front
Un globo meteorológico se llena con 15.0 L de helio a una temperatura de 25°C y una presión de 1 atm. ¿Cuál es la presión del helio en el globo en la atmosfera superior cuando la temperatura es -35°C y el volumen se vuelve 34 L?
Back
0.352 atm
6.
FLASHCARD QUESTION
Front
4.5 L de un gas a 4.8 atm se reduce a 2.4 atm. ¿Cuál será el volumen? (Temperatura constante)
Back
9 L
7.
FLASHCARD QUESTION
Front
¿A qué presión 98 g de nitrógeno gaseoso ocupan 69 L a 27ºC? (N2=28 g/mol) R=0.0821 atm l/mol K
Back
1.2 atm
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