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NEETChemistryThermodynamics (C)

What is the standard molar enthalpy of formation?

Options

  1. AThe heat change when a compound is formed from its elements in their most stable states
  2. BThe heat change when a compound is dissolved in water
  3. CThe heat change when a compound is vaporized
  4. DThe heat change when a compound undergoes sublimation

Correct answer

A. The heat change when a compound is formed from its elements in their most stable states

Step-by-step solution

The standard molar enthalpy of formation is the heat change when one mole of a compound is formed from its elements in their most stable states of aggregation.

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