- 133.68
130.68
133.68
- 130.68
The standard Gibbs energy change for the formation of propane (C3H8(g)) at 298 K is
[ΔfHθ for propane =−103.85 kJ mole−1, SθmC3H8(g)=270.2 JK−1mol−1, SθmH2(g)=130.68 JK−1mol−1, SθmC(graphite)=5.742 JK−1mol−1]