Space time equals the mean residence time__________________?

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 reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the_________________?

A. Increased temperature reduces the activation energy B. Fraction of molecules having threshold energy increases C. Collision frequency increases D. Value of threshold energy decreases...

The effectiveness factor for large value of Thiele modulus [L√(K/D1)] of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm2/second) ?

A. L √(K/D1) B. 1/[L√(K/D1)] C. 1 D. ∞...

The reaction A → B is conducted in an isothermal batch reactor. If the conversion of A increases linearly with holding time, then the order of the reaction is __________________?

A. 0 B. 1 C. 1.5 D. 2...

Find a mechanism that is consistent with the rate equation and reaction given below ?

2A + B → A2B, ( – rA) = k.CA.CB A. A + B ⇌ AB; AB + A → A2B B. A + B → AB; AB + A → A2B C. A + A → AA; AA + B → A2B D. A + A ⇌ AA; AA + B → A2B...