A gas contains 80.0 wt% propane, 15.0 wt% n-butane, and the balance water a) Calculate the molar composition of this gas on both a wet and a dry basis and the ratio (mol H2O/mol dry gas) [Hint: basis 1000 g gas feed then convert to mol) b) If 100 kg/h of this fuel is to be burned with 30% excess air, what is the required air feed rate (kmol/h)? [Hint: calculate theoretical 02 using both reactions] c) How would the answer change if the combustion were only 75% complete (i.e. 25% fuel combust to CO) 31