In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for Fast reactions in catalyst of small pore diameter Fast reaction in catalyst of large pore diameter Slow reactions in catalyst of large pore diameter Slow reactions in catalyst of small pore diameter TRUE ANSWER : ? YOUR ANSWER : ?
A plug-flow reactor is characterised by High capacity Constant composition and temperature of reaction mixture Presence of axial mixing Presence of lateral mixing TRUE ANSWER : ? YOUR ANSWER : ?
Thermodynamic equilibrium constant in a system is affected by Temperature All of these Pressure Inerts TRUE ANSWER : ? YOUR ANSWER : ?
If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst Porosity is very important None of these Porosity is of less importance Internal surface area is utilised efficiently TRUE ANSWER : ? YOUR ANSWER : ?
The equilibrium constant of chemical reaction __________ in the presence of catalyst. Increases Decreases Remains unaffected Can either increase or decrease (depends on the type of catalyst) TRUE ANSWER : ? YOUR ANSWER : ?
A catalyst in a chemical reaction Decreases the activation energy All of these Increases the frequency of collisions of reacting species Alters the reaction mechanism TRUE ANSWER : ? YOUR ANSWER : ?
A typical example of an exothermic reversible reaction conducted at high pressure in industry is Polymerisation of ethylene Dehydration of ethanol Reformation of methane Methanol synthesis TRUE ANSWER : ? YOUR ANSWER : ?
Differential method for analysing the kinetic data is used None of these When the data are scattered For testing complicated mechanisms When rate expressions are very simple TRUE ANSWER : ? YOUR ANSWER : ?
An irreversible aqueous phase reaction, A + B → P, is carried out in an adiabatic mixed flow reactor. A feed containing 4kmole/m³ of each A and B enters the reactor at 8m³ /hr. If the temperature of the exit stream is never to exceed 390 K, what is the maximum inlet feed temperature allowed?(Data: Heat of reaction = - 50 kJ/mole, Density of the reacting mixture = 1000kg/m³, Specific heat of reacting mixture = 2kJ/kg.K)The above data can be assumed to be independent of temperature and composition. 490 290 390 190 TRUE ANSWER : ? YOUR ANSWER : ?
With an increase in pressure in gaseous phase chemical reactions, the fractional conversion __________ when the number of moles decreases. Decreases Unpredictable from the data Remains unaffected Increases TRUE ANSWER : ? YOUR ANSWER : ?