Chemistry

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Calculate the entropy change when 2.42 g of
H2 reacts with O2 according to the reaction
2 H2(g) + O2(g) → 2 H2O(ℓ)
at 298 K and 1 atm pressure. The standard molar enthalpy of formation of H2O(ℓ)
at 298 K is −285.8 kJ/mol. The corresponding free energy of formation is −237.2 kJ/mol.
Answer in units of J/K

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