Chemical Reaction Engineering The experimentally determined overall order of the reaction, A + B → C + D, is two. Then the Molecularity of the reaction is 2, but the reaction may not be elementary Reaction is elementary but the molecularity may not be 2 Reaction is elementary with a molecularity of 2 Reaction may be elementary with molecularity of 2 Molecularity of the reaction is 2, but the reaction may not be elementary Reaction is elementary but the molecularity may not be 2 Reaction is elementary with a molecularity of 2 Reaction may be elementary with molecularity of 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transition state theory is valid, the value of E/R is 9210°K 8764°K 8987°K 8621°K 9210°K 8764°K 8987°K 8621°K ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to The intrinsic activation energy E ED/2 (E + ED)/2 (E + ED) where ED is activation due to diffusion The intrinsic activation energy E ED/2 (E + ED)/2 (E + ED) where ED is activation due to diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible. < 0.5 ∞ 0 > 0.5 < 0.5 ∞ 0 > 0.5 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 Equal to or more than Less than More than Equal to Equal to or more than ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism. Inversely proportional to Independent of Proportional to Proportional to the square of Inversely proportional to Independent of Proportional to Proportional to the square of ANSWER DOWNLOAD EXAMIANS APP
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