Chemical Reaction

______________ catalytic reaction is involved in the thermal cracking of gas oil ?

Byadmin February 20, 2019August 23, 2021

______________ catalytic reaction is involved in the thermal cracking of gas oil ?

A. Homogeneous
B. Non-Homogeneous
C. Heterogeneous
D. Non-Heterogeneous

Chemical Reaction

A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m3 and volumetric flow rate 1m3 /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m3. The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 k.mole/m3, the volume of the mixed flow reactor should be increased by a factor of_______________?

A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m3 and volumetric flow rate 1m3 /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m3. The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 k.mole/m3, the volume of the mixed flow reactor should be increased by a factor of_______________?

A. 7
B. 6
C. 3
D. 7/3

Read More A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m3 and volumetric flow rate 1m3 /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m3. The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 k.mole/m3, the volume of the mixed flow reactor should be increased by a factor of_______________?
Chemical Reaction

The reaction rate constants at two different temperatures T1 and T2 are related by _________________?

The reaction rate constants at two different temperatures T1 and T2 are related by _________________?

A. ln (k2/k1) = (E/R) (1/T2 – 1/T1)
B. ln (k2/k1) = (E/R) (1/T1 – 1/T2)
C. exp (k2/k1) = (E/R) (1/T2 – 1/T1)
D. exp (k2/k1) = (E/R) (1/T1 – 1/T2)

Read More The reaction rate constants at two different temperatures T1 and T2 are related by _________________?
Chemical Reaction

The enzyme which can catalyse the conversion of glucose to ethyl alcohol is ___________________?

The enzyme which can catalyse the conversion of glucose to ethyl alcohol is ___________________?

A. Invertase
B. Maltase
C. Diastase
D. Zymase

Read More The enzyme which can catalyse the conversion of glucose to ethyl alcohol is ___________________?
Chemical Reaction

A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is ___________________?

A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is ___________________?

A. 0.33
B. 0.5
C. 1
D. Data insufficient, can’t be predicted

Read More A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is ___________________?
Chemical Reaction

For identical flow rate, feed composition and for elementary first order reactions, ‘N’ equal sized mixed reactors in series with a total volume ‘V’ gives the same conversion as a single plug flow reactor of volume ‘V’ for constant density systems. This is true, when the value of ‘N’ is ___________________?

For identical flow rate, feed composition and for elementary first order reactions, ‘N’ equal sized mixed reactors in series with a total volume ‘V’ gives the same conversion as a single plug flow reactor of volume ‘V’ for constant density systems. This is true, when the value of ‘N’ is ___________________?

A. 1
B. > 1
C. ∞
D. ≥ 1

Read More For identical flow rate, feed composition and for elementary first order reactions, ‘N’ equal sized mixed reactors in series with a total volume ‘V’ gives the same conversion as a single plug flow reactor of volume ‘V’ for constant density systems. This is true, when the value of ‘N’ is ___________________?
Chemical Reaction

A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be ____________________ minutes?

A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be ____________________ minutes?

A. 4
B. 8
C. 12
D. 16

Read More A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be ____________________ minutes?

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