7631. Conversion increases with increase in temperature in case of a an __________ reaction.
Autocatalytic
Irreversible
Reversible endothermic
Reversible exothermic
✅ The correct answer is option C.
Chemical Engineering
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7632. The rate constant of a first order reaction depends on the
Concentration of the reactant
Temperature
Concentration of the product
Time
✅ The correct answer is option B.
7633. 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)
✅ The correct answer is option C.
7634. A batch reactor is suitable for
Achieving cent percent conversion of reactants into products
Large scale gaseous phase reactions
Liquid phase reactions
Obtaining uniform polymerisation products in highly exothermic reactions
✅ The correct answer is option C.
7635. Dew point of an air-water vapor mixture
Decreases with decrease in pressure
At constant humidity & total pressure is fixed
Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve
All of the above
✅ The correct answer is option D.
7637. The catalyst in a first order chemical reaction changes the
Equilibrium constant
Activation energy
Heat of formation of the product
Heat of reaction
✅ The correct answer is option B.
7638. With increase in temperature, the leaching rate increases because of the
Increased diffusivity
Decreased viscosity of liquid
Both A and B
Neither A nor B
✅ The correct answer is option C.
7639. Which of the following will give maximum gas conversion?
Fixed bed reactor
Fluidised bed reactor
Semi-fluidised bed reactor
Plug-flow catalytic reactor
✅ The correct answer is option C.
7640. In an ideal tubular-flow reactor
There is no mixing in longitudinal direction
Mixing takes place in radial direction
There is a uniform velocity across the radius
All of the above
✅ The correct answer is option D.