A typical example of an exothermic reversible reaction conducted at high pressure in industry is Methanol synthesis Dehydration of ethanol Polymerisation of ethylene Reformation of methane TRUE ANSWER : ? YOUR ANSWER : ?
For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is 4 11 2 22 TRUE ANSWER : ? YOUR ANSWER : ?
The rate of a chemical reaction is almost doubled for every 10°C rise in temperature. The rate will increase __________ times, if the temperature rises form 10 to 100°C. 256 612 512 112 TRUE ANSWER : ? YOUR ANSWER : ?
For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by A ramp function A dirac delta function None of these A step function TRUE ANSWER : ? YOUR ANSWER : ?
A chemical reaction occurs, when the energy of the reacting molecules is __________ the activation energy of reaction. Less than Equal to or more than Equal to More than TRUE ANSWER : ? YOUR ANSWER : ?
With increase in temperature, the equilibrium __________ rises in case of endothermic reaction. Neither A nor B Both A & B Conversion Constant TRUE ANSWER : ? YOUR ANSWER : ?
At a given temperature, K₁, K₂ and K3 are equilibrium constants for the following reactions 1, 2, 3 respectively. CH₄(g) + H₂O(g) ⇋ CO(g) + 3H₂(g), CO(g) + H₂O(g) ⇋ CO₂(g) + H₂(g) CH₄(g) + 2H₂O(g) ⇋ CO₂(g) + 4H₂(g) Then K₁, K₂ and K3 are related as: K3(K₁+K₂)/2 K3 = K₁.K₂ K3 = (K₁.K₂)0.5 K3 = (K₁.K₂)2 TRUE ANSWER : ? YOUR ANSWER : ?
With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be Same in both the reactors Higher in P.F. reactor Higher in CSTR Data insufficient; can't be predicted 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. 490 390 290 190 TRUE ANSWER : ? YOUR ANSWER : ?
In a continuous flow stirred tank reactor, the composition of the exit stream Is different than that in the reactor None of these Depends upon the flow rate of inlet stream Is same as that in the reactor TRUE ANSWER : ? YOUR ANSWER : ?