Physical Chemistry Answers

About 30% of crude oil is processed eventually into automobile gasoline. As petroleum prices rise and resources dwindle, alternatives must be found. However, automobile engines can be tuned so that they will run on simple alcohols. Methanol, and ethanol can be derived from coal or plant biomass, respectively. While the alcohols produce fewer pollutants than gasoline, they also reduce the travel radius of a tank of fuel. What percent increase in the size of fuel tank is needed to give an equivalent travel radius if gasoline is replaced by alcohol? Base your calculations on 40 kilojoules per gram of gasoline having a specific gravity of 0.84, and the product water as a gas. Make the calculations for (a) methanol; (b) ethanol.

A synthesis gas at 500°C. That analyzes 6.4% CO2, 0.2%O2, 40% CO, 50.8% H2, and the balance nitrogen is burned with 40% dry excess air, which is at 25°C. The composition of the flue gas, which is at 720°C is 13% CO2, 14.3%H2O, 67.6% N2 and 5.1% O2. What was the heat transfer to or from the combustion process?

rocket exhaust gas contains a cluster of various gases which includes hydrogen chloride ,chlorine etc.,is it possible to extract hydrogen gas from the exhaust ??