Chemical Reaction Engineering The performance of a cascade of CSTR's can be improved by adding More CSTR's in parallel A P.F. reactor in series A P.F. reactor in parallel More CSTR's in series More CSTR's in parallel A P.F. reactor in series A P.F. reactor in parallel More CSTR's in series ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are Highly temperature sensitive Insensitive to temperature changes Always irreversible Mostly irreversible Highly temperature sensitive Insensitive to temperature changes Always irreversible Mostly irreversible ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Space time equals the mean residence time For large diameter tubular reactor For CSTR For narrow diameter tubular reactor When the density of the reaction mixture is constant For large diameter tubular reactor For CSTR For narrow diameter tubular reactor When the density of the reaction mixture is constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst is said to be a negative catalyst, ifit Retards the rate of reaction Does not initiate the reaction All of these Reduces the value of equilibrium constant Retards the rate of reaction Does not initiate the reaction All of these Reduces the value of equilibrium constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate determining step in a reaction consisting of a number of steps in series is the __________ step. Slowest Fastest Data insufficient; can't be predicted Intermediate Slowest Fastest Data insufficient; can't be predicted Intermediate ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the liquid phase parallel reactions:R, rR = K?.CA2; E? = 80 KJ/moleS, rS = K?.CA ; E? = 120 KJ/mole The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at Low temperature in a CSTR High temperature in a PFR Low temperature in a PFR High temperature in a CSTR Low temperature in a CSTR High temperature in a PFR Low temperature in a PFR High temperature in a CSTR ANSWER DOWNLOAD EXAMIANS APP
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