What does the term 'enthalpy of formation' refer to?
Practice Questions
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Q1
What does the term 'enthalpy of formation' refer to?
Energy required to break bonds
Energy change when one mole of a compound is formed from its elements
Energy released during combustion
Energy change during a phase transition
The enthalpy of formation is defined as the energy change when one mole of a compound is formed from its elements in their standard states.
Questions & Step-by-step Solutions
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Q
Q: What does the term 'enthalpy of formation' refer to?
Solution: The enthalpy of formation is defined as the energy change when one mole of a compound is formed from its elements in their standard states.
Steps: 5
Step 1: Understand that 'enthalpy' is a measure of energy in a system.
Step 2: Know that 'formation' means creating something.
Step 3: Realize that 'enthalpy of formation' specifically refers to the energy change when a compound is made.
Step 4: Remember that this process involves one mole of the compound.
Step 5: Recognize that the elements used to form the compound must be in their 'standard states', which means they are in their most stable form at a specific temperature and pressure.
