Chemical Reaction Engineering Threshold energy in a reaction is equal to the Neither A nor B Normal energy of reactants Activation energy Sum of A & B Neither A nor B Normal energy of reactants Activation energy Sum of A & B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Photochemical reaction rate does not depend significantly on temperature, because The energy of reacting molecules exceeds the activation energy by absorption of light It is an exothermic reaction None of these It is a reversible reaction The energy of reacting molecules exceeds the activation energy by absorption of light It is an exothermic reaction None of these It is a reversible reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Helium-mercury method is used for the measurement of the __________ of the catalyst. Pore volume Porosity Surface area Both B & C Pore volume Porosity Surface area Both B & C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a dimension-less group used in catalysis ? (where, D = dispersion co-efficient, cm² /sec.D1 = diffusion co-efficient; cm²/sec L = length of the reactor, cm t = time, sec, v = volumetric flow rate, cm³/sec . V = volume, cm³.) Thiele modulus (L√(k/D1) None of these Reactor dispersion number (D/vL) Reduced time (vt/V) Thiele modulus (L√(k/D1) None of these Reactor dispersion number (D/vL) Reduced time (vt/V) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Variables affecting the rate of homogeneous reactions are Pressure and composition only Pressure, temperature and composition Pressure and temperature only Temperature and composition only Pressure and composition only Pressure, temperature and composition Pressure and temperature only Temperature and composition only ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Exposure of a photographic plate to produce a latent image is an example of __________ reaction. Very slow Both B and C Photochemical Very fast Very slow Both B and C Photochemical Very fast ANSWER DOWNLOAD EXAMIANS APP
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