Chemical Reaction Engineering The effectiveness factor for large value of Thiele modulus (L√(K/D1)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm²/second) 1/(L√(K/D1)) 1 L√(K/D1) ∞ 1/(L√(K/D1)) 1 L√(K/D1) ∞ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A chemical reaction occurs, when the energy of the reacting molecules is __________ the activation energy of reaction. Less than More than Equal to or more than Equal to Less than More than Equal to or more than Equal to ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Inversion of cane sugar is an example of Unimolecular reaction with second order Bimolecular reaction with second order Bimolecular reaction with first order Unimolecular reaction with first order Unimolecular reaction with second order Bimolecular reaction with second order Bimolecular reaction with first order Unimolecular reaction with first order ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the Fraction of molecules having threshold energy increases Value of threshold energy decreases Increased temperature reduces the activation energy Collision frequency increases Fraction of molecules having threshold energy increases Value of threshold energy decreases Increased temperature reduces the activation energy Collision frequency increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a tubular flow reactor with uniform concentration and temperature, the independent variable is None of these Diameter Length Time None of these Diameter Length Time ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of calcination of limestone, CaCO₃ CaO + CO₂, the addition of more of CaO will result in __________ in the concentration of CO₂. Decrease Unpredictable from the data No change Increase Decrease Unpredictable from the data No change Increase ANSWER DOWNLOAD EXAMIANS APP
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