Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about _______________ minutes?

Related Mcqs:

The rate expression for a heterogeneous 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) ?

A. E B. E + ΔHA C. E + ΔHA – ΔHR) D. ΔHA + ΔHR...

The order of a chemical reaction is__________________?

A. An experimentally determined quantity B. Always equal to the total stoichiometric number of reactants C. Never fractional D. None of these...

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_____________________?

A. 60 B. 75 C. 90 D. 100...

The rate of a gas phase reaction is given by K . CA . CB. If the volume of the reaction vessel is reduced to l/4th of its initial volume, then the reaction rate compared to the original rate will be _______________ times?

A. 4 B. 16 C. 8 D. 2...

Which of the following resistances is not involved in a gas phase catalytic (gas-solid) reaction ?

A. Ash resistance B. Gas film and pore surface diffusion resistances for reactants C. Surface phenomenon resistance D. Gas film and pore surface diffusion resistances for products...