3. Whenever a system undergoes either a change in state or an energy or mass transfer at a steady state, it is said to undergo
A. A steady state transfer
B. A change of state
C. An equilibrium
D. A process
3. Whenever a system undergoes either a change in state or an energy or mass transfer at a steady state, it is said to undergo
A. A steady state transfer
B. A change of state
C. An equilibrium
D. A process