The half life period of a first order reaction is given by (where, K = rate constant) ?
The half life period of a first order reaction is given by (where, K = rate constant) ? A. 1.5 K B. 2.5 KC. 0.693/K D. 6.93 K
The half life period of a first order reaction is given by (where, K = rate constant) ? A. 1.5 K B. 2.5 KC. 0.693/K D. 6.93 K
The reason why a catalyst increases the rate of reaction is that, it______________? A. Decreases the energy barrier for reaction B. Increases the activation energy C. Decreases the molecular collision diameter D. None of these
A catalyst______________________? A. Initiates a reactionB. Lowers the activation energy of reacting molecules C. Is capable of reacting with any one of the reactants D. Cannot be recovered chemically unchanged at the end of a chemical reaction
The rate controlling step for the heterogeneous irreversible catalytic reaction A(g) + B(g) → C(g) is the surface reaction of absorbed A with absorbed B to give adsorbed C. The rate expression for this reaction can then be written as…
Reaction rate equation for the bellow figure reaction, If S at is present in large excess, what is the order of this reaction ? A. ZeroB. One C. Two D. Three
In the gaseous phase ammonia formation reaction (N2 + 3H2 ⇌ 2NH3), the value of the equilibrium constant depends on the_________________? A. Total pressure of the system B. Volume of the reactorC. Temperature D. Initial concentration of N2 and H2
For a heterogeneous catalytic reaction____________________? A. Free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction B. A relatively small amount of catalyst can cause the conversion of large amount of…
A photochemical reaction is _______________? A. Accompanied with emission of light B. Catalysed by lightC. Initiated by light D. All A., B. & C.
For high conversion in a highly exothermic solid catalysed reaction, use a ______________ bed reactor? A. FixedB. Fluidised bed reactor followed by a fixed C. Fixed bed reactor followed by a fluidised D. Fluidised
Sometimes, batch process is preferred over continuous process, when the product___________________? A. Quality & yield cannot be achieved in continuous processes, because of long residence time B. Sales demand is fluctuatingC. Both A. & B. D. Neither A. nor B.