Steam is produced from the gaseous-phase reaction as follows: H2(g)+1/2O2(g)H2O (a) Calculate the rS(J) per mole of H2O produced. (b) If 1.00 mole of H2(g) and 0.50 mole of O2(g) was present initially and resulted to a decrease in entropy of 46J/K at constant pressure and at 500.15K, calculate the composition of the product (%mol) and the fractional conversion of the limiting reactant