Chemical Engineering - Chemical Reaction Engineering

31.
Photochemical reaction rate does not depend significantly on temperature, because
it is a reversible reaction.
it is an exothermic reaction.
the energy of reacting molecules exceeds the activation energy by absorption of light.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
A CSTR is to be designed in which an exothermic liquid phase first order reaction of the type, A R, is taking place. The reactor is to be provided with a jacket in which coolant is flowing. Following data is given: CA0= 5 kmole/m3 ; XA = 0.5; Feed temperature = reactor temperature = 40°C. Rate constant at 40°C = 1 min-1 ; (ΔH) = - 40kJ/mole; ρ = 1000kg/m3 CP = 4 J/gm.°C ; q = 10-3 m3/min (ρ and CP are same for the reactant and product streams). The amount of heat to be removed is
2/3 kW
1kW
5/3 kW
4kW
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
According to the 'law of mass action', the rate of reaction is directly proportional to the
equilibrium constant.
volume of the reaction vessel.
nature of the reactants.
molar concentration of the reactants.
Answer: Option
Explanation:
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34.
In a chemical reaction, __________ are conserved.
ions
masses
atoms
both(b) & (c)
Answer: Option
Explanation:
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35.
For an ideal gas mixture undergoing a reversible gaseous phase chemical reaction, the equilibrium constant
is independent of pressure.
increases with pressure.
decreases with pressure.
increases /decreases with pressure depending on the stoichiometric co-efficients of the reaction.
Answer: Option
Explanation:
No answer description is available. Let's discuss.