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CHEMICAL REACTION ENGINEERING

Chemical Reaction Engineering
When a catalyst increases the rate of forward reaction, the value of rate constant

Remain same
Increases
Becomes infinite
Decreases

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Chemical Reaction Engineering
In the hydrodealkylation of toluene to benzene, the following reactions occur:C₇H₈ + H₂ → C₆H₆ + CH₄2C₆H₆ ⇋ C₁₂H₁₀ + H₂Toluene and hydrogen are fed to a reactor in a molar ratio 1:5.80% of the toluene gets converted and the selectivity of benzene(defined as moles of benzene formed/moles of toluene converted) is 90%. The fractional conversion of hydrogen is

0.16
0.136
0.144
0.152

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Chemical Reaction Engineering
Half-life period for a first order reaction is __________ the initial concentration of the reactant.

Directly proportional to
None of these
Inversely proportional to
Independent of

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Chemical Reaction Engineering
What is the order of a chemical reaction whose rate is deter-mined by the variation of one concentration term only?

Zero
Second
Third
First

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Chemical Reaction Engineering
Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure?

Freundlich adsorption isotherm
Adsorption isobar
Langmuir adsorption isotherm
None of these

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