Reações Exotérmicas e Endotérmicas
Flashcard
•
Chemistry
•
11th Grade
•
Hard
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8 questions
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1.
FLASHCARD QUESTION
Front
O que é uma reação endotérmica?
Back
Uma reação que absorve energia do ambiente.
2.
FLASHCARD QUESTION
Front
Qual é a característica principal de uma reação exotérmica?
Back
Liberação de energia em forma de calor.
3.
FLASHCARD QUESTION
Front
Entalpia
Back
A medida de energia de um sistema termodinâmico.
4.
FLASHCARD QUESTION
Front
Qual é um exemplo de processo endotérmico?
Back
Queima de gordura corporal.
5.
FLASHCARD QUESTION
Front
Qual é a variação da entalpia (ΔH) em uma reação endotérmica?
Back
ΔH > 0
6.
FLASHCARD QUESTION
Front
Qual é a variação da entalpia (ΔH) em uma reação exotérmica?
Back
ΔH < 0
7.
FLASHCARD QUESTION
Front
Qual é um exemplo de processo exotérmico?
Back
Colocar uma panela no fogo.
8.
FLASHCARD QUESTION
Front
Como se calcula a variação da entalpia de acordo com a Lei de Hess?
Back
ΔH = Hf - Hi
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