A. Increased COP
B. Same COP
C. Decreased COP
D. Increased or decreased COP; depending upon the type of refrigerant
A. 0.25
B. 0.5
C. 0.75
D. 1
A. 0.5
B. 3.5
C. 4.5
D. 8.5
A. J/s
B. J.S
C. J/kmol
D. kmol/J
A. 1.987 cal/gm mole °K
B. 1.987 BTU/lb. mole °R
C. Both A. and B
D. Neither A. nor B
A. Same in both the phases
B. Zero in both the phases
C. More in vapour phase
D. More in liquid phase
A. SO2
B. NH3
C. CCl2F2
D. C2H4Cl2
A. A homogeneous solution (say of phenol water) is formed
B. Mutual solubility of the two liquids shows a decreasing trend
C. Two liquids are completely separated into two layers
D. None of these
A. (∂T/∂V)S, ni = -(∂P/∂S)V, ni
B. (∂S/∂P)T, ni = (∂V/∂T)P, ni
C. (∂S/∂V)T, ni = (∂P/∂T)V, ni
D. (∂T/∂P)S, ni = (∂V/∂S)P, ni
A. Temperature
B. Pressure
C. Volume
D. None of these