NEET Chemistry Chemical Equilibrium MCQ Question
Calculate the change in Gibbs free energy (∆G ) for the formation of NO2 from NO and O2 at 298K using the given standard Gibbs free energy of formation values: ∆fG (NO2) = 52.0 kJ/mol, ∆fG (NO) = 87.0 kJ/mol, ∆fG (O2) = 0 kJ/mol.
-35.0 kJ/mol
-87.0 kJ/mol
35.0 kJ/mol
87.0 kJ/mol
Correct Answer
Detailed Explanation
The change in Gibbs free energy (∆G ) is calculated using the formula: ∆G = ∆fG (products) - ∆fG (reactants). Substituting the given values: ∆G = 52.0 - (87.0 + 0) = -35.0 kJ/mol.
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