An inventor thinks he has developed a new catalyst that can make the gas-phase reaction CO2  + 4H2O------> 2H2O + CH4   Proceed with 100% conversion. Estimate the heat that must be provided or removed if the gases enter and leave at 500°C.

Absolute (100%) ethanol is produced from 95% ethanol and 5% water using the Keyes distillation process. Another component, benzene, is added to lower the instability of the alcohol. With these conditions, the product from the top of the distiller is a constant-boiling mixture of 18.5% ethanol, 7.4% H₂O, and 74.1% benzene, as shown here: 95% ethanol 5% water Benzene Distillation tower P(absolute ethanol) = 0.785 g/cm³ P(benzene) = 0.872 g/cm³ 74.1% benzene 18.5% ethanol 7.4% water 100% ethanol Calculate the volume of benzene that should be fed to the still to produce 250 L of absolute ethanol, using this data:

The equilibrium constant for the reaction N₂ + O₂2NO is 1.69 × 10-³ at 2300 K. A mixture consisting of 2 mol of nitrogen and 1.0 mol of oxygen is heated to 2300 K at 1 bar and allowed to come to equilibrium. Calculate the mole fraction of NO at equilibrium.

(c)Explain the meaning of Azeotrope and their effect in distillation process. Describe how an Azeotrope of ethanol and water can be separated.