A. kg/cm2
B. mm of water column
C. pascal
D. dynes per square cm
E. bars
A. Charles’ Law
B. Joule’s Law
C. Regnault’s Law
D. Boyle’s Law
E. there is no such law
A. mass does not cross boundaries of the system, though energy may do so
B. mass crosses the boundary but not the energy
C. neither mass nor energy crosses the boundaries of the system
D. both energy and mass cross the boundaries of the system
E. thermodynamic reactions take place
A. + ve
B. -ve
C. zero
D. maximum
E. minimum
A. heat can’t be transferred from low temperature source to high temperature source
B. heat can be transferred for low temperature to high temperature source by using refrigeration cycle.
C. heat can be transferred from low temperature to high temperature source if COP of process is more than unity
D. heat can’t be transferred from low temperature to high temperature source without the aid of external energy
E. all of the above
A. thermodynamic properties
B. zeroth law of thermodynamics
C. first law of thermodynamics
D. second law of thermodynamics
E. joule’s law
A. increases
B. decreases
C. remains constant
D. may increase/decrease depending on the properties of gas
E. shows unpredictable behaviour