A. Molecular size
B. Temperature
C. Volume
D. Pressure
A. The energy change of a system undergoing any reversible process is zero
B. It is not possible to transfer heat from a lower temperature to a higher temperature
C. The total energy of system and surrounding remains the same
D. None of the above
A. its internal energy (U) decreases and its entropy (S) increases
B. U and S both decreases
C. U decreases but S is constant
D. U is constant but S decreases
A. Pressure
B. Temperature
C. Both A. & B
D. Neither A. nor B
A. Reversible isothermal volume change
B. Heating of a substance
C. Cooling of a substance
D. Simultaneous heating and expansion of an ideal gas
A. Isothermal
B. Adiabatic
C. Isentropic
D. Polytropic
A. 1.572
B. 1.9398
C. 3.389
D. 4.238