Thermodynamics ...

For a system to be in thermodynamic equilibrium_______

Which one of the following is the correct combination of type of thermometer and its thermometric property respectively?

A can of soft drink at room temperature is put into the refrigerator so that it will cool. Would you model the can of soft drink as________

The thermodynamic state of a closed system containing a pure fluid changes from (T₁, p₁) to (T₂, p₂), where T and p denote the temperature and pressure, respectively. Let Q denote the heat absorbed (> 0 if absorbed by the system) and W the work done (> 0 if done by the system). Neglect changes in kinetic and potential energies. Which one of the following is CORRECT?

A reversible thermodynamic cycle containing only three processes and producing work is to be constructed. The constraints are: (a) there must be one isothermal process, (b) there must be one isentropic process, (c) the maximum and minimum cycle pressures and the clearance volumes are fixed, and (d) polytropic processes are not allowed. Then the numbers of possible cycles are