Chemical Reaction Engineering Mcqs Archives

Chemical reactions involve the participation of

September 15, 2019 BILAL KHATTAK0

A.electrons
B.protons
C.neutrons
D.nuclei

A certain reaction has arate expression -rA = 0.001 CA2, mol/cm3 min. If the concentration is to be expressed in mol/lit. and time in hours. The value of the rate constant would be

September 8, 2019 BILAL KHATTAK0

A.0.60 hr-1 (mol/l)-1
B.0.001 hr-1 (mol/l)-1
C.60.000 hr-1 (mol/l)-1
D.0.06 hr-1 (mol/l)-1

For the isothermal gas-phase reaction A ? 3B, the fractional change in volume of the system between no conversion and complete conversion is

September 2, 2019 BILAL KHATTAK0

A.1
B.3
C.2
D.2?3

Pure gaseous reactant A (CAO = 100 millimol/litre) is fed at steady rate into a mixed reactor where it dimerizes (2A ? R). For a certain gas feed rate the concentration of A in the exit stream is found to be 50 millimol/litre. The fractional conversion of A is

August 28, 2019 BILAL KHATTAK0

A.50%
B.33.33%
C.40%
D.66.67%

What experimental information is necessary to determine the energy of activation for a chemical reaction? (k0 is an unknown constant in the Arrhenius equation)

August 26, 2019 BILAL KHATTAK0

A.The reaction rate constant at one temperature is sufficient
B.The reaction rate constants at two or more different temperatures must be known
C.The reaction rate constants at three different temperatures must be known
D.The reaction rate constants at two different temperatures and k0 must be known.