Related Questions

For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor.
A Stirred tank
B Tubular flow
C Batch
D Fixed bed
Isothermal compression though most efficient, but is not practicable because
A It requires very big cylinder
B It does not increase pressure much
C It is impossible in practice
D Compressor has to run at very slow speed to achieve it
Isothermal turbulent flow of a fluid results in decrease of its pressure, which depends on the
A Wall roughness
B Reynolds number
C Both A and B
D Neither A nor B
ধীরে ধীরে সংঘঠিত সমোষ্ণ (isothermal) রুদ্ধতাপীয়(adiabatic) পরিবর্তনে এন্ট্রপির পরিবর্তন (Δs) কত?
A Δs=0
B Δs>0
C Δs<0
D উপরের সবগুলো
The work done in isothermal compression compared to that in adiabatic compression will be
A Less
B More
C Same
D More or less depending upon the extent of work done
The isothermal and adiabatic processes are regarded as
A Reversible process
B Irreversible process
C Reversible or irreversible process
D None of these
In an isothermal process, the internal energy of gas molecules
A Increases
B Decreases
C Remain constant
D May increase/decrease depending on the properties of gas
In multistage compressor, the isothermal compression is achieved by
A Employing inter-cooler
B By constantly cooling the cylinder
C By running compressor at very slow speed
D By insulating the cylinder
The overall isothermal efficiency of the compressor is defined as the ratio of
A Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio
B Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor
C Volume of free air delivery per stroke to the swept volume of the piston
D Isentropic power to the power required to drive the compressor
The overall isothermal efficiency of compressor is defined as the ratio of
A Isothermal h.p. to the BHP of motor
B Isothermal h.p. to adiabatic h.p.
C Power to drive compressor to isothermal h.p.
D Work to compress air isothermally to work for actual compression

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