Test
Standard enthalpy changes
Preguntas del test (7)
1What are standard conditions?
- A1 atmosphere, 298K
- B2 atmosphere
- C200K
2What is the standard enthalpy change of reaction?
- AThe 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
- BThe 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
- CThe enthalpy change that takes place when one mole of a compound is formed from the constituent elements in their standard states under standard conditions
3Which is the Hess cycle for enthalpy change of formation?
- A
- B
- A
4Which is the Hess cycle for enthalpy change of combustion?
- A
- B
- A
5What does Hess' law state?
- AIf 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
- BIf a reaction takes place by more than one route, the total enthalpy change differs for each route
- CA reaction cannot take place by more than one route
6What is the standard enthalpy change of combustion?
- AThe 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
- BThe 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
- CThe enthalpy change that takes place when 1 mole of a compound is formed from its constituent elements in their standard states under standard conditions
7What is the enthalpy change of formation?
- AThe 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
- BThe 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
- CThe enthalpy change that takes place when 1 mole of a compound is formed from its constituent elements in their standard states under standard conditions
Información
- Descripción
- Chemistry Test sobre Standard enthalpy changes, creado por leigh.smith el 17/03/2015.
- Autor
- leigh.smith
- Idioma
- English
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