An insulated cylinder/piston contains R-134a at 1 MPa, 50°C, volume of 100 L. The R-134a expands, dropping the pressure in the cylinder to 100 kPa. The R-134a does 190 kJ of work against the piston during this process. Is that possible?

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Entropy topics include: Entropy property, temperature entropy, entropy applications and mechanisms, entropy generations, first and second laws, reversible adiabatic work. In thermodynamics, entropy is a quantitative measure of the disorder or randomness in a system. It's also known as a thermodynamic function, which is a thermodynamic quantity whose change is independent of the system's path.  Entropy is central to the second law of thermodynamics, which states that the entropy of an isolated system cannot decrease with time. This means that isolated systems evolve toward thermodynamic... Show more

An insulated cylinder/piston contains R-134a at 1 MPa, 50°C, volume of 100 L. The R-134a expands, dropping the pressure in the cylinder to 100 kPa. The R-134a does 190 kJ of work against the piston during this process. Is that possible?