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Chemical Reaction

The catalytic converter for conversion of SO2 to SO3 by contact process should have a feed with SO2 content between___________________?

Chemical Reaction /
The catalytic converter for conversion of SO2 to SO3 by contact process should have a feed with SO2 content between___________________?

A. 2-5 %
B. 7-10 %
C. 12-15 %
D. 20-25 %

The catalytic converter for conversion of SO2 to SO3 by contact process should have a feed with SO2 content between___________________? Read More »

Chemical Reaction

For a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to ____________________?

Chemical Reaction /
For a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to ____________________?

A. 0
B. 1
C. 0.1
D. 0.5

For a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to ____________________? Read More »

Chemical Reaction

The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transition state theory is valid, the value of „E/R’ is __________________?

Chemical Reaction /
The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transition state theory is valid, the value of „E/R’ is __________________?

A. 8987°K
B. 9210°K
C. 8764°K
D. 8621°K

The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transition state theory is valid, the value of „E/R’ is __________________? Read More »

Chemical Reaction

6 gm of carbon is burnt with an amount of air containing 18 gm oxygen. The product contains 16.5 gms CO2 and 2.8 gms CO besides other constituents. What is the degree of conversion on the basis of disappearance of limiting reactant ?

Chemical Reaction /
6 gm of carbon is burnt with an amount of air containing 18 gm oxygen. The product contains 16.5 gms CO2 and 2.8 gms CO besides other constituents. What is the degree of conversion on the basis of disappearance of limiting reactant ?

A. 100%
B. 95%
C. 75%
D. 20%

6 gm of carbon is burnt with an amount of air containing 18 gm oxygen. The product contains 16.5 gms CO2 and 2.8 gms CO besides other constituents. What is the degree of conversion on the basis of disappearance of limiting reactant ? Read More »

Chemical Reaction

A first order reaction requires two equal sized CSTR. The conversion is____________________?

Chemical Reaction /
A first order reaction requires two equal sized CSTR. The conversion is____________________?

A. Less when they are connected in series
B. More when they are connected in series
C. More when they are connected in parallel
D. Same whether they are connected in series or in parallel

A first order reaction requires two equal sized CSTR. The conversion is____________________? Read More »

Chemical Reaction

The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the_________________?

Chemical Reaction /
The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the_________________?

A. Space time for each parallel line is same
B. Space time for parallel lines is different
C. Larger reactors have more space time compared to smaller ones
D. None of these

The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the_________________? Read More »

Chemical Reaction