Related Questions

Methane is mixed with stoichiometric proportion of oxygen and completely combusted. The number of additional specifications required to determine the product flow rate and composition is
A 0
B 1
C 2
D 3
A stoichiometric air-fuel ratio is
A Chemically correct mixture
B Lean mixture
C Rich mixture for idling
D Rich mixture for over loads
Stoichiometric quantity of air is the
A Air present in atmosphere at NTP conditions
B Air required for complete combustion of fuel with no excess air
C Air required for optimum combustion so as to have reasonable excess air
D Air required to convert CO into CO2
Stoichiometric ratio is
A Chemically correct air-fuel ratio by weight
B Chemically correct air-fuel ratio by volume
C Actual air-fuel ratio for maximum efficiency
D None of the above
Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.
A Proportional to
B Independent of
C Inversely proportional to
D Proportional to the square of
The minimum liquid rate to be used in an absorber corresponds to an operating line
A Of slope = 1
B Of slope = 0.1
C Tangential to the equilibrium curve
D None of these
Shouting by a man at his full voice corresponds to a voice level of about __________ decibels.
A 25
B 50
C 80
D 120
Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels.
A 75
B 95
C 120
D 140
Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.
A Atoms
B Neutrons
C Nucleons
D Electrons
For a __________ order reaction, the units of rate constant and rate of reaction are the same.
A Zero
B First
C Second
D Fractional

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