For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction C₂H₂(g) + H₂(g) ⇒ 2CH₂(g) the standard change in Gibbs free energy is AG° = −69.0 kJ/mol. What is AG for this reaction at 298 K when the partial pressures are PC₂H₂ = 0.350 atm, Pµ₂ = 0.500 atm, and PcH₂ = 0.950 atm? AG = kJ/mol

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.