88. Solving a chemistry problem

19. Using the standard enthalpies of formation and standard entropies at 25 C (Table 6.4, Appendix 6), calculate the standard values ​​of the enthalpy, internal energy, Gibbs energy and Helmholtz energy of the reaction indicated in the table below, at the same temperature. Determine whether the reaction will go forward or backward.
Task Reaction
19 C2H6 (g) = C2H4 (g) H2(g)