Viscosity of atmospheric air may be about _____________ centipoise?
A. 0.015
B. 1.5
C. 15
D. 150
Stoichiometry
Pick out the wrong unit conversion of heat transfer co-efficient?
Pick out the wrong unit conversion of heat transfer co-efficient?
A. 1 kcal/m2.hr.°C = 0.2048 BTU/ft2.hr. °F. = 1.163 W/m2.°K
B. 1 kcal/m2.hr.°K = 1.163 W/m2.°C
C. 1 W/m2.°C = 0.1761 BTU/ft2.hr.°F.
D. 1 BTU/ft2.hr.°F = 4.88 kcal/m2.hr.°C = 20.44 kJ/m2.hr°C = 5.678 W/m2.°C
The rate of material _____________ is zero in case of a steady state system?
The rate of material _____________ is zero in case of a steady state system?
A. Accumulation
B. Production
C. Input
D. Generation
Refluxing of part of the distillate in a fractionating column is a ‘recycling operation’, aimed primarily at_______________?
Refluxing of part of the distillate in a fractionating column is a ‘recycling operation’, aimed primarily at_______________?
A. Heat conservation
B. Yield enhancement
C. Product enrichment
D. None of these
If the absolute temperature of an ideal gas is tripled and simultaneously the pressure is reduced to one third; then the volume of gas will _______________?
If the absolute temperature of an ideal gas is tripled and simultaneously the pressure is reduced to one third; then the volume of gas will _______________?
A. Remain unaltered
B. Increase nine fold
C. Increase three fold
D. Decrease three fold
Simultaneous doubling of the absolute temperature of a gas and reduction of its pressure to half will result in _____________ in the volume of the gas?
Simultaneous doubling of the absolute temperature of a gas and reduction of its pressure to half will result in _____________ in the volume of the gas?
A. No change
B. Doubling
C. 1/4th reduction
D. Fourfold increase
The unit of Cp in S.I. units is___________________?
The unit of Cp in S.I. units is___________________?
A. W/m2.°K
B. J/kg.°K
C. W/m.°K
D. J/m3. °K
In the reaction, represented by Na2CO3 + HC1 → NaHO3 + NaCl, the equivalent weight of Na2CO3 is________________?
In the reaction, represented by Na2CO3 + HC1 → NaHO3 + NaCl, the equivalent weight of Na2CO3 is________________?
A. 53
B. 5.3
C. 106
D. 10.6
Real gases approach ideal behaviour at___________________?
Real gases approach ideal behaviour at___________________?
A. High pressure & high temperature
B. Low pressure & high temperature
C. High pressure & low temperature
D. Low pressure & low temperature
Cp – Cv for an ideal gas is equal to________________?
Cp – Cv for an ideal gas is equal to________________?
A. R
B. R/2
C. 2R
D. 3R