
Entalpia e Reações Químicas
Interactive Video
•
Chemistry, Science
•
10th - 12th Grade
•
Practice Problem
•
Easy
Ethan Morris
Used 1+ times
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que acontece com o delta H quando a entalpia do produto é maior que a do reagente?
Delta H é negativo
Delta H é positivo
Delta H é zero
Delta H não muda
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a característica de um processo exotérmico?
Aumenta a temperatura
Não troca calor
Libera calor
Absorve calor
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na leitura de uma equação química, o que indica um valor positivo ao lado dos reagentes?
Os produtos liberam calor
Os reagentes liberam calor
Os reagentes absorvem calor
Os produtos absorvem calor
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é necessário para que os reagentes A e B formem os produtos C e D?
Liberação de 100 kJ
Absorção de 100 kJ
Aumento de pressão
Nenhuma troca de calor
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que acontece quando o calor está no lado dos reagentes?
Os reagentes liberam calor
Os reagentes absorvem calor
Os produtos absorvem calor
Os produtos liberam calor
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quando o calor está no lado dos produtos, o que isso indica?
Os produtos absorvem calor
Os produtos liberam calor
Os reagentes absorvem calor
Os reagentes liberam calor
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o sinal do delta H quando o calor é liberado?
Positivo
Negativo
Zero
Indefinido
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