Chemical Reaction Engineering BET apparatus Is made entirely of stainless steel None of these Measures the catalyst surface area directly Operates at very high pressure Is made entirely of stainless steel None of these Measures the catalyst surface area directly Operates at very high pressure 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 D1.5 D2 D √d D1.5 D2 D √d ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of a/an __________ chemical reaction, conversion increases with the rise in temperature. Reversible exothermic Irreversible endothermic Reversible endothermic Irreversible exothermic Reversible exothermic Irreversible endothermic Reversible endothermic Irreversible exothermic ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate constant of a chemical reaction decreases by decreasing the Concentration of reactants Duration of reaction Temperature Pressure Concentration of reactants Duration of reaction Temperature Pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate of a chemical reaction is almost doubled for every 10°C rise in temperature. The rate will increase __________ times, if the temperature rises form 10 to 100°C. 112 256 512 612 112 256 512 612 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) ΔHA + ΔHR E + ΔHA E E + ΔHA - ΔHR ΔHA + ΔHR E + ΔHA E E + ΔHA - ΔHR ANSWER DOWNLOAD EXAMIANS APP
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