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Chemical Reaction

The reaction rate constants at two different temperatures T1 and T2 are related by _________________?

Chemical Reaction /
The reaction rate constants at two different temperatures T1 and T2 are related by _________________?

A. ln (k2/k1) = (E/R) (1/T2 – 1/T1)
B. ln (k2/k1) = (E/R) (1/T1 – 1/T2)
C. exp (k2/k1) = (E/R) (1/T2 – 1/T1)
D. exp (k2/k1) = (E/R) (1/T1 – 1/T2)

The reaction rate constants at two different temperatures T1 and T2 are related by _________________? Read More »

Chemical Reaction

The size of plug flow reactor (PFR) for all positive reaction orders and for any given duty, is _____________________ that of mixed reactor?

Chemical Reaction /
The size of plug flow reactor (PFR) for all positive reaction orders and for any given duty, is _____________________ that of mixed reactor?

A. Greater than
B. Equal to
C. Smaller than
D. Unpredictable from the data

The size of plug flow reactor (PFR) for all positive reaction orders and for any given duty, is _____________________ that of mixed reactor? Read More »

Chemical Reaction

For the liquid phase parallel reactions__________________?

Chemical Reaction /
For the liquid phase parallel reactions__________________?

R, rR = K1.CA2; E1 = 80 KJ/mole
S, rs = K1.CA ; E2 = 120 KJ/mole
The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted
at
A. Low temperature in a CSTR
B. High temperature in a CSTR
C. Low temperature in a PFR
D. High temperature in a PFR

For the liquid phase parallel reactions__________________? Read More »

Chemical Reaction

For the gaseous reaction 2A → B, where the feed consists of 50 mole % A and 50 mole % inerts, the expansion factor is___________________?

Chemical Reaction /
For the gaseous reaction 2A → B, where the feed consists of 50 mole % A and 50 mole % inerts, the expansion factor is___________________?

A. 1
B. -0.5
C. -0.25
D. 0

For the gaseous reaction 2A → B, where the feed consists of 50 mole % A and 50 mole % inerts, the expansion factor is___________________? Read More »

Chemical Reaction

With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will________________?

Chemical Reaction /
With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will________________?

A. Increase
B. Decrease
C. Remain same
D. Data in insufficient; can’t be predicted

With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will________________? Read More »

Chemical Reaction