Baffles are provided in heat exchangers to____________?A. Remove dirt
B. Increase heat transfer rate
C. Reduce vibrations
D. Reduce heat transfer rate
B. Increase heat transfer rate
C. Reduce vibrations
D. Reduce heat transfer rate
CHEMICAL ENGINEERING
Which of the following is not correct for a reversible adiabatic process ?
Which of the following is not correct for a reversible adiabatic process ?
A. TVγ-1 = constant
B. p1-γ.TY = constant
C. PVγ = constant
D. None of these
Equation which relates pressure, volume and temperature of a gas is called the__________________?
Equation which relates pressure, volume and temperature of a gas is called the__________________?
A. Equation of state
B. Gibbs Duhem equation
C. Ideal gas equation
D. None of these
At triple point (for one component system), vapour pressure of solid as compared to that of liquid will be________________?
At triple point (for one component system), vapour pressure of solid as compared to that of liquid will be________________?
A. More
B. Less
C. Same
D. More or less; depending on the system
Mollier diagram is a plot of___________________?
Mollier diagram is a plot of___________________?
A. Temperature vs. enthalpy
B. Temperature vs. enthalpy
C. Entropy vs. enthalpy
D. Temperature vs. internal energy
The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the ____________ temperature?
The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the ____________ temperature?
A. Critical
B. Boyle
C. Inversion
D. Reduced
Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are_______________?
Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are_______________?
A. Always greater than one
B. Same at the same reduced temperature
C. Same at the same reduced pressure
D. Both B. & C
In a turbine, the fluid expands almost_________________?
In a turbine, the fluid expands almost_________________?
A. Isothermally
B. Isobarically
C. Adiabatically
D. None of these
The number of degrees of freedom at the triple point of water is__________________?
The number of degrees of freedom at the triple point of water is__________________?
A. 0
B. 1
C. 2
D. 3
The chemical potential for a pure substance is ____________ its partial molal free energy?
The chemical potential for a pure substance is ____________ its partial molal free energy?
A. More than
B. Less than
C. Equal to
D. Not related to