Chemical Engineering Thermodynamics

Work done in an adiabatic process between two states depends on the

  • A. Rate of heat transmission
  • B. Initial state only
  • C. End states only
  • D. None of these
Answer: Option C.

End states can be determined from the internal energy levels at those states. If we are considering a system S, the heat energy (dQ) can be used to do work (dW) or to store energy as potential energy (dU).
dQ = dW + dU
The interesting thing is that, for an adiabatic process dQ will be zero. So, the work done in an adiabatic process depends only on the internal energy. i.e. end states.

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