Standard enthalpy changes

Question 1 of 7

1

What are standard conditions?

Select one or more of the following:

1 atmosphere, 298K
2 atmosphere
200K

Explanation

Question 2 of 7

1

What is the standard enthalpy change of reaction?

Select one or more of the following:

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 one 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 one mole of a compound is formed from the constituent elements in their standard states under standard conditions

Explanation

Question 3 of 7

1

Which is the Hess cycle for enthalpy change of formation?

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Explanation

Question 4 of 7

1

Which is the Hess cycle for enthalpy change of combustion?

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Explanation

Question 5 of 7

1

What does Hess' law state?

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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
If a reaction takes place by more than one route, the total enthalpy change differs for each route
A reaction cannot take place by more than one route

Explanation

Question 6 of 7

1

What is the standard enthalpy change of combustion?

Select one or more of the following:

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

Explanation

Question 7 of 7

1

What is the enthalpy change of formation?

Select one or more of the following:

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

	Created by leigh.smith over 9 years ago

Chemistry Quiz on Standard enthalpy changes, created by leigh.smith on 17/03/2015.

Standard enthalpy changes

Standard enthalpy changes

Question 1 of 7

What are standard conditions?

Select one or more of the following:

Explanation

Question 2 of 7

What is the standard enthalpy change of reaction?

Select one or more of the following:

Explanation

Question 3 of 7

Which is the Hess cycle for enthalpy change of formation?

Select one or more of the following:

Explanation

Question 4 of 7

Which is the Hess cycle for enthalpy change of combustion?

Select one or more of the following:

Explanation

Question 5 of 7

What does Hess' law state?

Select one or more of the following:

Explanation

Question 6 of 7

What is the standard enthalpy change of combustion?

Select one or more of the following:

Explanation

Question 7 of 7

What is the enthalpy change of formation?

Select one or more of the following:

Explanation