(Solved): For each of the following reactions, calculate Hrxn,Srxn, and Grxn at 25 ...

For each of the following reactions, calculate $?H_{\mathrm{rxn}}^{?},?S_{\mathrm{rxn}}^{?}$, and $?G_{\mathrm{rxn}}^{?}$ at $25^{?}\mathrm{C}$. State whether or not the reaction is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from $25^{?}\mathrm{C}$ ? Part A $2{\mathrm{CH}}_4(\mathrm{g})?{\mathrm{C}}_2{\mathrm{H}}_6(\mathrm{g})+{\mathrm{H}}_2(\mathrm{g})$ Express your answer to one decimal place. $?H_{\mathrm{rxn}}^{?}=$ $\mathrm{kJ}$ Part B Calculate $?S_{\text{Ixn }}^{?}$ at $25^{?}\mathrm{C}$. Express your answer to one decimal place. $2{\mathrm{NH}}_3(\mathrm{g})?{\mathrm{N}}_2{\mathrm{H}}_4(\mathrm{g})+{\mathrm{H}}_2(\mathrm{g})$ Express your answer to one decimal place. Part E Calculate $?S_{\text{rxn }}^{?}$ at $25^{?}\mathrm{C}$. Express your answer to one decimal place.