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Chemical Reaction Engineering

Chemical Reaction Engineering
Given, 3H₂ + CO = CH₄ + H₂O, KP = 101.84 and, 4H₂ + CO₂ = CH₄ + 2H₂O, KP = 101.17the KP for the reaction CO + H₂O = CO₂ + H₂ is

103.01
10-0.67
L00.67
10-3.01

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Chemical Reaction Engineering
For a first order chemical reaction, the rate constant

Has unit of time⁻¹
Is not a function of the unit of time
Changes on changing the concentration units
None ofthese

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Chemical Reaction Engineering
Consider the 'n' th order irreversible liquid phase reaction A → B. Which one of the following plots involving half life of the reaction (t1/2) and the initial reactant concentration (CA0) gives a straight line plot?

CA0 Vs t1/2
Ln CA0 Vs t1/2
Ln CA0 Vs ln t1/2
CA0 Vs ln t1/2

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Chemical Reaction Engineering
The effectiveness factor for large value of Thiele modulus (L√(K/D1)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm²/second)

∞
1
1/(L√(K/D1))
L√(K/D1)

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Chemical Reaction Engineering
In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume.

Less than
More than
Data insufficient; can't be predicted
Same as

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Chemical Reaction Engineering
A stirred tank reactor compared to tubular-flow reactor provides

Permits operation at the optimum temperature for a long reaction time
More uniform operating conditions
Higher overall selectivity for a first order consecutive reaction
All of these

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