Standard Gibbs energy change at 298 K for the N2O4 / NO2 equilibrium from its enthalpy and entropy change
The same question, asked 2 times: 2021 Paper 24*, 23 Jan 2025. Every wording below, oldest first.
Try each one first, then open its answer.
Question 1
2021 Paper 24
53
For the reaction 2NO2(g)⇌N2O4(g), when ΔS=−176.0JK−1 and ΔH=−57.8kJmol−1, the magnitude of ΔG at 298K for the reaction is ____kJmol−1. (Nearest integer)
Question 2
23 Jan 2025
50
The standard enthalpy and standard entropy of decomposition of N2O4 to NO2 are 55.0kJmol−1 and 175.0J/K/mol respectively. The standard free energy change for this reaction at 25∘C in Jmol−1 is ______ (Nearest integer)
