Chemical Reaction Engineering A catalyst promoter Itself has very high activity Improves the activity of a catalyst Acts as a catalyst support All of these Itself has very high activity Improves the activity of a catalyst Acts as a catalyst support All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to D2 D1.5 D √d D2 D1.5 D √d ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Organic catalysts differ from the inorganic catalyst in the sense that the former is Active at cryogenic temperatures only Prohibitively costly Proteinous in nature Active at very high temperature only Active at cryogenic temperatures only Prohibitively costly Proteinous in nature Active at very high temperature only ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to ED/2 (E + ED)/2 The intrinsic activation energy E (E + ED) where ED is activation due to diffusion ED/2 (E + ED)/2 The intrinsic activation energy E (E + ED) where ED is activation due to diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When a catalyst increases the rate of forward reaction, the value of rate constant Remain same Increases Becomes infinite Decreases Remain same Increases Becomes infinite Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the rate of a chemical reaction becomes slower at a given temperature, then the Free energy of activation is lower Free energy of activation is higher Initial concentration of the reactants remains constant Entropy changes Free energy of activation is lower Free energy of activation is higher Initial concentration of the reactants remains constant Entropy changes ANSWER DOWNLOAD EXAMIANS APP
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