A. Pressure
B. Temperature
C. Both A. & B
D. Neither A. nor B
A. Expansion in an engine
B. Following a constant pressure cycle
C. Throttling
D. None of these
A. Triple point
B. Boiling point
C. Below triple point
D. Always
A. More than
B. Less than
C. Equal to
D. Data insufficient, can’t be predicted
A. Internal energy
B. Enthalpy
C. Gibbs free energy
D. Helmholtz free energy
A. Single phase fluid of varying composition
B. Single phase fluid of constant composition
C. Open as well as closed systems
D. Both B. and C
A. Temperature only
B. Temperature and pressure only
C. Temperature, pressure and liquid composition xi only
D. Temperature, pressure, liquid composition xi and vapour composition yi