A. In which there is a temperature drop
B. Which is exemplified by a non-steady flow expansion
C. Which can be performed in a pipe with a constriction
D. In which there is an increase in temperature
Related Mcqs:
- ________________ decreases during adiabatic throttling of a perfect gas?
A. Entropy
B. Temperature
C. Enthalpy
D. Pressure - Joule-Thomson effect i.e., a throttling process is a constant _____________ process?
A. Entropy
B. Temperature
C. Internal energy
D. Enthalpy - Throttling (Joule-Thomson effect) process is a constant _____________ process?
A. Enthalpy
B. Entropy
C. Pressure
D. None of these - On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)s and the slope of the reversible isothermal line (∂P/∂V)T are related as (where, y = Cp/Cv) ?
A. (∂P/∂V)S = (∂P/∂V)T
B. (∂P/∂V)S = [(∂P/∂V)T]Y
C. (∂P/∂V)S = y(∂P/∂V)T
D. (∂P/∂V)S = 1/y(∂P/∂V)T - Throttling process is a/an _____________ process?
A. Reversible and isothermal
B. Irreversible and constant enthalpy
C. Reversible and constant entropy
D. Reversible and constant enthalpy - After throttling, gas temperature___________________?
A. Decreases
B. Increases
C. Remain same
D. May increase or decrease; depends on the nature of the gas - Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio of 3, assuming air to be an ideal gas (Y = Cp/Cv = 7/5) and the process to be reversible, is___________________?
A. 300 × (32/7)
B. 300 × (33/5)
C. 300 × (333/7)
D. 300 × (35/7) - Specific heat of a gas for a reversible adiabatic process is________________?
A. Negative
B. Zero
C. Infinity
D. None of these - All gases except ____________ shows a cooling effect during throttling process at atmospheric temperature and pressure?
A. Oxygen
B. Nitrogen
C. Air
D. Hydrogen - All gases above its inversion temperature, in a throttling process will show__________________?
A. A heating effect
B. No change in temperature
C. A cooling effect
D. Either A. or (C)
