Chemical Reaction Engineering With increase in temperature, the rate constant obeying Arhenious equation Can either increase or decrease ; depends on the frequency factor Increases Decreases Decreases exponentially Can either increase or decrease ; depends on the frequency factor Increases Decreases Decreases exponentially ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is 0.5 1 Data insufficient, can't be predicted 0.33 0.5 1 Data insufficient, can't be predicted 0.33 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering From Arhenius law, a plot of loge K versus 1/T gives a straight line with a slope of (-E/R). The unit of E/R is K cal/°K K cal K cal. °K °K K cal/°K K cal K cal. °K °K 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) E + ΔHA - ΔHR E ΔHA + ΔHR E + ΔHA E + ΔHA - ΔHR E ΔHA + ΔHR E + ΔHA ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of a/an __________ chemical reaction, conversion increases with the rise in temperature. Reversible exothermic Irreversible exothermic Reversible endothermic Irreversible endothermic Reversible exothermic Irreversible exothermic Reversible endothermic Irreversible endothermic ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a/an __________ reactor, there is exchange of heat with the surroundings with sizeable temperature variation. Isothermal Non-adiabatic Adiabatic None of these Isothermal Non-adiabatic Adiabatic None of these ANSWER DOWNLOAD EXAMIANS APP
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