Chemical Reaction Engineering Catalyst carriers Increase the activity of a catalyst Provide large surface area with a small amount of active material Have very high selectivity Inhibit catalyst poisoning Increase the activity of a catalyst Provide large surface area with a small amount of active material Have very high selectivity Inhibit catalyst poisoning 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 large pore diameter Fast reaction in catalyst of large pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter Fast reaction in catalyst of large pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of small pore diameter ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Transition state theory relates the above quantities as K ∝ √T K ∝ T1.5 K ∝ e-E/RT K ∝ T.eE/RT K ∝ √T K ∝ T1.5 K ∝ e-E/RT K ∝ T.eE/RT ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The ratio of volume of mixed reactor to the volume of P.F.R. (for identical flow rate, feed composition and conversion) for zero order reaction is ∞ > 1 1 ∞ > 1 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be Higher in P.F. reactor Data insufficient; can't be predicted Same in both the reactors Higher in CSTR Higher in P.F. reactor Data insufficient; can't be predicted Same in both the reactors Higher in CSTR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is the most suitable for isothermal operation? Plug-flow reactor Back-mix reactor Batch reactor Fixed bed reactor Plug-flow reactor Back-mix reactor Batch reactor Fixed bed reactor ANSWER DOWNLOAD EXAMIANS APP
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