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MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryThermodynamics and ThermochemistryThermochemical Equations

Which of the following reactions define o f G ? (a) diamond C O g CO g → (b) H g F g HF g → (c) H P O H O 2H PO → (d) SO g O g SO g →

Answer
B
Explanation

Standard Gibbs energy of formation ( o f G ) of a substance is defined as the Gibbs energy change when one mole of the substance is formed from its elements in their standard states. The following reaction defines o f G . 2 2 1 1 H g F g HF g 2 2 →

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