Chemical Reaction Engineering The energy of activation of a chemical reaction Both B and C Is the minimum energy which the molecules must have before the reaction can take place Varies as fifth power of the temperature Is same as heat of reaction at constant pressure Both B and C Is the minimum energy which the molecules must have before the reaction can take place Varies as fifth power of the temperature Is same as heat of reaction at constant pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R? 2.24 2 1.6 2.5 2.24 2 1.6 2.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A typical example of an exothermic reversible reaction conducted at high pressure in industry is Methanol synthesis Dehydration of ethanol Polymerisation of ethylene Reformation of methane Methanol synthesis Dehydration of ethanol Polymerisation of ethylene Reformation of methane ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A high space velocity means that a given Both A and B Reaction can be accomplished with small reactor None of these Conversion can be obtained with a high feed rate Both A and B Reaction can be accomplished with small reactor None of these Conversion can be obtained with a high feed rate ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a homogeneous reaction of nth order, the dimension of the rate constant is given by None of these (concentration)n - 1/(time) (concentration)1 - n/(time) L/(time)n None of these (concentration)n - 1/(time) (concentration)1 - n/(time) L/(time)n ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The gas phase reaction 2A ⇋ B is carried out in an isothermal plug flow reactor. The feed consists of 80 mole % A and 20 mole % inerts. If the conversion of A at the reactor exit is 50%, then CA/CA0 at the outlet of the reactor is 43833 43898 43959 43864 43833 43898 43959 43864 ANSWER DOWNLOAD EXAMIANS APP
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