Chemical Engineering Answers

Discuss best arrangement of a set of ideal reactors (small mixed flow reactor, large mixed flow reactor and plug flow reactor) connected in series for any nth order reaction,n>0.

"An infinite equal size mixed flow reactors connected in series will give same performance as a single plug flow reactor" Justify.

Write difference between mixed and plug flow reactors.

a) An aqueous reactant stream (4mol/liter) passes through a mixed flow reactor followed by a plug flow reactor. Find the concentration at the exit of the plug flow reactor if in the mixed flow reactor CA-Imol/liter. The reaction is second onder with respect to A: the volume of the plug flow reactor is three times that of the mixed flow reactor. What is the effect on the exit concentration when the reactor combination is neversed for the same feed rate and by how much?

At 500K, the rate of a bimolecular reaction is ten times the rate at 400K Find the activation energy for this reaction from Arhenius theory and collision state theory. Calculate percentage differences of rates from both the reactions.

a) A gas A, decomposes ineversibly to form a gas. C, as per the reactionA→2C. The decomposition of A is a first order reaction and is carried out in an isothermal constant pressure and volume batch reactors separately. Derive the expression for the pressure and volume (both separately) of the system as a function of time, assuming gas behave ideally.

At the boiling point of a completely immiscible system of two liquids, the partial of pressure component in the vapour phase is. a) Always less than its vapour pressure at that temperature b) Always greater than its vapour pressure at that temperature. c) Equal to its vapour pressure at that temperature

d) Dependent on nature and the amount of the other component in the liquid phase

lon exchange resin is

a) Linear substance. b) Low molecular weight substance

c) Organic polymer with porous structure

d) Soluble

Adsorption of gases on solids a) Increases with increasi temperature

b) Decreases with increasing temperature. c) Decreases with decreasing temperature

d) Remains constant with increasing temperature

Adsorption of gases on solids a) Increases with increasi temperature

b) Decreases with increasing temperature. c) Decreases with decreasing temperature

d) Remains constant with increasing temperature