Chemical Reaction Engineering 'Unreacted core model' represents the reaction involving Roasting of sulphide ores Manufacture of carbon disulphide from elements None of these Combustion of coal particles Roasting of sulphide ores Manufacture of carbon disulphide from elements None of these Combustion of coal particles ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst inhibitor Is added in small quantity during the catalyst manufacture itself All of these May be useful for suppressing undesirable side reactions Lessens its selectivity Is added in small quantity during the catalyst manufacture itself All of these May be useful for suppressing undesirable side reactions Lessens its selectivity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Organic catalysts differ from the inorganic catalyst in the sense that the former is Active at very high temperature only Prohibitively costly Proteinous in nature Active at cryogenic temperatures only Active at very high temperature only Prohibitively costly Proteinous in nature Active at cryogenic temperatures only ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering From collison theory, the reaction rate constant is proportional to Exp(- E/RT) Exp(- E/2RT) Tm.exp(- E/RT) √T Exp(- E/RT) Exp(- E/2RT) Tm.exp(- E/RT) √T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Promoter. Atlers the position of equilibrium in a reversible reaction All of these Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals Initiates a chemical reaction and is a catalyst by itself Atlers the position of equilibrium in a reversible reaction All of these Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals Initiates a chemical reaction and is a catalyst by itself ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by Reaction Diffusion within the pellet None of these External mass transfer Reaction Diffusion within the pellet None of these External mass transfer ANSWER DOWNLOAD EXAMIANS APP
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