5 Questions
Which of the following best defines the standard enthalpy of formation?
The change in enthalpy when 1 mole of a compound is formed from its constituent elements in their reference state
What is the recommended standard pressure value for the standard enthalpy of formation?
1 bar
What does the superscript Plimsoll on the symbol ΔfH⦵ indicate?
The process has occurred under standard conditions at the specified temperature
What is the standard state for a gas in the context of standard enthalpy of formation?
The state the gas would assume if it obeyed the ideal gas equation at a pressure of 1 bar
What is the standard state for a gaseous or solid solute present in a diluted ideal solution in the context of standard enthalpy of formation?
The hypothetical state of concentration of the solute of exactly one mol
Test your knowledge of standard enthalpy of formation and thermodynamics in chemistry with this quiz. Learn about the change in enthalpy during the formation of compounds and the reference states of elements. Recommended by IUPAC, this quiz covers the standard pressure value and important concepts prior to 198
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