
Termoquímica parte 2
Authored by Ale Rubio
Chemistry
11th Grade
Used 6+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
La expresión -∆HR se interpreta como una reacción
Exotérmica
Isotérmica
Endotérmica
Adiabática
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
En termoquímica el siguiente símbolo corresponde a:
La Entropía
La entalpía
Energía libre de Gibbs
Energía interna
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La entalpía de la reacción de formación de agua líquida es:
H 2 (g) + 1/2 O 2 (g) ---> H 2 O (l) ΔH ° f = -285,8 kJ/mol.
Si en este proceso se necesita formar dos mol de agua, la variación de entalpía será:
-142,9 kJ/mol
142,9 kJ/mol
-571,6kJ
-571,6 calorias
300 kJ
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Es la energía liberada o absorbida por la quema de 1 molde sustancia, siempre en presencia de oxígenogaseoso
Entalpía de formación
Entalpía de descomposición
Entalpía de combustión
Entalpía de neutralización
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
La entropía se refiere
al orden
al desorden
al interior
al calor
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
La entropia del sistema aumenta si pasa de liquido a solido
falsa
Verdadero
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cuando a un sistema se le agrega________ su temperatura ________por lo que su entropía _________
calor, aumenta y aumenta
trabajo, disminuye y aumenta
calor, disminuye y aumenta
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