Tungsten is usually produced by the reduction of WO3 with hydrojen as shown by the equation;
WO3(s) + 3 H2(g) ? W (s) + 3 H2O (g)
The enthalpy for the reaction,(delta H rxn ) ?H°rxn is + 114.5 kj. The entropy for the reaction (Delta S rxn) ?S°rxn is + 132 J/K.
a) Use the enthalpy and entrophy values given to calculate the ?G° (delta G ) for this reaction at 25 °C.
First: show the relationship among the three thermodynamic functions before doing the calculation.
b) Explain whether or not this process is spontaneous at 25 °C.0
c) Explain what can be done to make the process spontaneous.
d)Give the name for ?G (delta G )