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Chemistry 9701
AS & A Level · Chemistry 9701
Chemical energetics
AS Level
80 questions
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Q 1 / 80
What is the standard enthalpy change of formation?
A
The energy change when 1 mole of a compound is formed from its elements under standard conditions
B
The energy change when 1 mole of a substance is burned in excess oxygen
C
The energy change when 1 mole of a substance is converted from a solid to a liquid
D
The energy change when 1 mole of a substance is converted from a gas to a liquid
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