Fundamentals of Reaction Engineering — Summer 2023

Define and Explain, Rate and Molecularity of the reaction.

What are the different types of ideal reactors?

Discuss Differential method for analysis of rate data.

What is a constant volume batch reactor?

The saponification reaction: NaOH +CH COOC H → CH COONA+C H OH is 2nd order irreversible reaction. Alaboratory well stirred tank reactor is charged with an aqueous solution containing NaOH & ethyl acetate, both of initial concentration of 0.1 molar. After 15 min the conversion of ethyl acetate is 18%. For the initial charge containing NaOH & ethyl acetate in equal concentration of 0.2 molar, what time is required to obtain a conversion of 30% in a batch reactor?

What do you understand by instantaneous fractional yield and overall fraction yield of a product? Give different contacting patterns for different concentration of reactant.

Derive the Cfor the reaction first order followed by zero order Rmax k1 k2 reaction for A→R →S.

Explain the significance of space time and space velocity.

Explain the types of multiple reaction with example.

In case of 1st order reaction, show that time required for 75% conversion is double the time required for 50% conversion.

How will you compare the performance of single batch reactor with the flow reactor and mixed versus plug flow reactor for a first order reaction?

Differentiate overall fractional yield and selectivity.

An aqueous solution of ethyl acetate is to be react with sodium hydroxide. The initial concentration of ethyl acetate is 5 gm/lit and that of caustic is 0.1 normal. The values of 2nd order rate constant at 0 °Cand 20 °Care 0.235 and 0.924 lit/mol*min respectively. The reaction is irreversible. Calculate the time required to react 95% of ester at 40 °C.

Explain adiabatic operation.

Explain standard heat of formation, standard heat of combustion and standard heat of reaction.

Explain the effect of temperature on equilibrium conversion as predicted by thermodynamics by keeping pressure fixed.1

Mention the characteristics of Chemical Equilibrium.

Write a short note on Optimum temperature progression.

What is equilibrium conversion? How is it related to equilibrium constant and temperature for case of a first order reversible reaction?

Write a short note on catalyst.

Mention the essential properties of a catalyst and its classification.

With the help of a sketch mention the seven steps involved in a catalytic reaction.

Explain the role of modifier, promoter and inhibitor in a catalytic reaction.

Write a short note on catalyst deactivation.

Synthesize a rate law for the decomposition of Cumene to form benzene and propylene considering that surface reaction is rate limiting.