Chemical Reaction Engineering If the rate of a chemical reaction becomes slower at a given temperature, then the Free energy of activation is lower Free energy of activation is higher Entropy changes Initial concentration of the reactants remains constant Free energy of activation is lower Free energy of activation is higher Entropy changes Initial concentration of the reactants remains constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Consider the 'n' th order irreversible liquid phase reaction A → B. Which one of the following plots involving half life of the reaction (t1/2) and the initial reactant concentration (CA0) gives a straight line plot? CA0 Vs ln t1/2 Ln CA0 Vs ln t1/2 Ln CA0 Vs t1/2 CA0 Vs t1/2 CA0 Vs ln t1/2 Ln CA0 Vs ln t1/2 Ln CA0 Vs t1/2 CA0 Vs t1/2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for Slow reactions in catalyst of small pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter Fast reaction in catalyst of large pore diameter Slow reactions in catalyst of small pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter Fast reaction in catalyst of large pore diameter ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following factors control the deactivation of a porous catalyst pellet? Form of surface attack by poison Pore diffusion Decay reactions All of these Form of surface attack by poison Pore diffusion Decay reactions All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the chemical reaction P → Q, it is found that the rate of reaction doubles as the concentration of 'P' is doubled. If the reaction rate is proportional to Cpn, then what is the value of 'n' for this chemical reaction 2 3 1 2 3 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m³ and volumetric flow rate 1m³ /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m³ . The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 kmole/m³ , the volume of the mixed flow reactor should be increased by a factor of 7 6 44015 3 7 6 44015 3 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS