The shape of T-S diagram for Carnot Cycle is a__________________?
The shape of T-S diagram for Carnot Cycle is a__________________?
A. Rectangle
B. Rhombus
C. Trapezoid
D. Circle
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In any spontaneous process, the ______________ free energy decreases ?
In any spontaneous process, the ______________ free energy decreases ?A. Helmholtz
B. Gibbs
C. Both A. & B.
D. Neither A. nor B.When dilute aqueous solutions of two salts are mixed, the process is associated with ___________________?
When dilute aqueous solutions of two salts are mixed, the process is associated with ___________________?A. Decrease in temperature
B. Increase in temperature
C. No change in temperature
D. Change in temperature which is a function of compositionThere is a change in ______________ during the phase transition?
There is a change in ______________ during the phase transition?A. Volume
B. Pressure
C. Temperature
D. All a, b & cIn an ideal refrigeration cycle, the change in internal energy of the fluid is_____________?
In an ideal refrigeration cycle, the change in internal energy of the fluid is_____________?A. +ve
B. -ve
C. 0
D. Either of the above three; depends on the nature of refrigerantOut of the following refrigeration cycles, which one has maximum COP ?
Out of the following refrigeration cycles, which one has maximum COP ?A. Air cycle
B. Carnot cycle
C. Ordinary vapor compression cycle
D. Vapor compression with a reversible expansion engineAll gases during throttling process at atmospheric temperature and pressure show a cooling effect except__________________?
All gases during throttling process at atmospheric temperature and pressure show a cooling effect except__________________?A. CO2
B. H2
C. O2
D. N2