Chemical Engineering :: Chemical Reaction Engineering
- The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to
- Reactions with high activation energy are
- The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are
- In a semi-batch reactor,
- Catalytic action in a catalytic chemical reaction follows from the ability of catalyst to change the
- If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the
- The energy of activation of a chemical reaction
- Backmixing is most predominant in
- Pick out the wrong statement.
- Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes.
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A.
In a batch reactor, which is exclusively used for liquid phase reactions; temperature pressure and composition may vary with time |
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B.
In a semi-batch reactor, one reactant is charged batchwise, while the other reactant is fed continuously |
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C.
In a continuous flow reactor, uniform concentration can not be maintained throughout the vessel even in a well agitated system |
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D.
N a continuous flow reactor, both the reactants and the products flow out continuously |