Chemical Reaction Engineering The conversion for a first order liquid phase reaction. A → B in a CSTR is 50%. If another CSTR of the same volume is connected in series, then the % conversion at the exit of the second reactor will be 75 100 60 90 75 100 60 90 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 Insensitive to temperature changes Always irreversible Highly temperature sensitive Mostly irreversible Insensitive to temperature changes Always irreversible Highly temperature sensitive Mostly irreversible ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering As the chemical reaction proceeds, the rate of reaction Remains same Decreases May increase or decrease depending on the type of reaction Increases Remains same Decreases May increase or decrease depending on the type of reaction Increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) E E + ΔHA ΔHA + ΔHR E + ΔHA - ΔHR E E + ΔHA ΔHA + ΔHR E + ΔHA - ΔHR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The temperature dependence of reaction rate constant (K) by Arhenius law is given by K α eE/RT K α T . e-E/RT K α √T . e-E/RT K α e-E/RT K α eE/RT K α T . e-E/RT K α √T . e-E/RT K α e-E/RT ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When a catalyst increases the rate of forward reaction, the value of rate constant Increases Remain same Becomes infinite Decreases Increases Remain same Becomes infinite Decreases ANSWER DOWNLOAD EXAMIANS APP
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