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Question No: 04 504 (D) 2 conthissed propgne has been suggested as a source of economic power for vehicles. Suppose that in a test 20lb of C3H8 is bumed with 400 of air to produce 44lb of 353 and 12kg of CO. What was the percent excess air? [3 Marks] (c) 100kgmo/40540mole% of solution of Ethylene dichloride in Toluene is fed to middle of the distillation column. The distillate contains 95 mole\% Ethylene dichloride and the b6toms consists of 90 mole\% Toluene. What is the rate of flow of each stream? (d) A liquefied mixture of n-butane, n-pentane and n-hexane has the following composition in %. For the mixture: Calculate (i) mole % of each component (ii) Average Molecular weight [3 Marks]