Chemical Reaction Engineering What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on? Litre/second Litre/mole.second Moles/litre.second Litre/mole Litre/second Litre/mole.second Moles/litre.second Litre/mole 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 K cal/°K K cal °K K cal. °K K cal/°K ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A reversible liquid phase endothermic reaction is to be carried out in a plug flow reactor. For minimum reactor volume, it should be operated such that the temperature along the length Decreases Increases First increases and then decreases Is at the highest allowable temperature throughout Decreases Increases First increases and then decreases Is at the highest allowable temperature throughout ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The fractional volume change of the system for the isothermal gas phase reaction, A 3B , between no conversion and complete conversion is 2 1 3 0.5 2 1 3 0.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The effectiveness factor for large value of Thiele modulus (L√(K/D1)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm²/second) 1 1/(L√(K/D1)) ∞ L√(K/D1) 1 1/(L√(K/D1)) ∞ L√(K/D1) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order reaction requires two unequal sized CSTR. Which of the following gives higher yield ? Smaller reactor followed by larger one Data insufficient, can Either of the arrangement A or B will give the same yield Large reactor followed by smaller one Smaller reactor followed by larger one Data insufficient, can Either of the arrangement A or B will give the same yield Large reactor followed by smaller one ANSWER DOWNLOAD EXAMIANS APP
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