A. Expansion in an engine
B. Following a constant pressure cycle
C. Throttling
D. None of these
Related Mcqs:
- Linde gas liquefaction process employs cooling ____________________?
A. By throttling
B. By expansion in an engine
C. At constant pressure
D. None of these - Claude gas liquefaction process employs cooling___________________?
A. At constant pressure
B. By throttling
C. By expansion in an engine
D. None of these - The principle applied in liquefaction of gases is_____________________?
A. Adiabatic expansion
B. Joule-Thomson effect
C. Both A. and B
D. Neither A. nor B - 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 during throttling process at atmospheric temperature and pressure show a cooling effect except__________________?
A. CO2
B. H2
C. O2
D. N2 - Grams of butane (C4H10) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be__________________?
A. 580
B. 640
C. 1160
D. Data insufficient; can’t be computed - The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is________________?
A. 0
B. ∞
C. +ve
D. -ve - 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) - The equilibrium constant for a chemical reaction at two different temperatures is given by__________________?
A. Kp2/Kp1 = – (ΔH/R) (1/T2 – 1/T1)
B. Kp2/Kp1 = (ΔH/R) (1/T2 – 1/T1)
C. Kp2/Kp1 = ΔH (1/T2 – 1/T1)
D. Kp2/Kp1 = – (1/R) (1/T2 – 1/T1) - The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 – T2)/T1. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T1 and T2 is given by__________________?
A. T1/(T1-T2)
B. T2/(T1-T2)
C. T1/T2
D. T2/R1
