2297773
Descrição
Quiz por leigh.smith, atualizado more than 1 year ago
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Criado por leigh.smith
mais de 9 anos atrás
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Questão 1
Questão
What are standard conditions?
Responda
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1 atmosphere, 298K
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2 atmosphere
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200K
Questão 2
Questão
What is the standard enthalpy change of reaction?
Responda
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The enthalpy change that accompanies a reaction in the molar quantities expressed in a chemical equation under standard conditions, all reactants and products being in their standard states
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The enthalpy change that takes place when one mole of a substance reacts completely with oxygen under standard conditions, all reactants and products being in their standard states
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The enthalpy change that takes place when one mole of a compound is formed from the constituent elements in their standard states under standard conditions
Questão 3
Questão
Which is the Hess cycle for enthalpy change of formation?
Responda
Questão 4
Questão
Which is the Hess cycle for enthalpy change of combustion?
Responda
Questão 5
Questão
What does Hess' law state?
Responda
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If a reaction can take place by more than one route and the initial and final condition are the same, the total enthalpy change is the same for each route
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If a reaction takes place by more than one route, the total enthalpy change differs for each route
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A reaction cannot take place by more than one route
Questão 6
Questão
What is the standard enthalpy change of combustion?
Responda
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The enthalpy change that accompanies a reaction in the molar quantities expressed in a chemical equation under standard conditions, all reactants and products being in their standard states
-
The enthalpy change that takes place when 1 mole of a substance reacts completely with oxygen under standard conditions, all reactants and products being in their standard states
-
The enthalpy change that takes place when 1 mole of a compound is formed from its constituent elements in their standard states under standard conditions
Questão 7
Questão
What is the enthalpy change of formation?
Responda
-
The enthalpy change that accompanies a reaction in the molar quantities expressed in a chemical equation under standard conditions, all reactants and products being in their standard states
-
The enthalpy change that takes place when 1 mole of a substance reacts completely with oxygen under standard conditions, all reactants and products being in their standard states
-
The enthalpy change that takes place when 1 mole of a compound is formed from its constituent elements in their standard states under standard conditions
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