Questions from Thermal Fluid Science

Q: Show that processes involving rapid chemical reactions are irreversible by considering the

Show that processes involving rapid chemical reactions are irreversible by considering the combustion of a natural gas (e.g., methane) and air mixture in a rigid container.

Q: Show that processes that use work for mixing are irreversible by considering

Show that processes that use work for mixing are irreversible by considering an adiabatic system whose contents are stirred by turning a paddle wheel inside the system (e.g., stirring a cake mix with...

Q: Why does a non-quasi-equilibrium compression process require a

Why does a non-quasi-equilibrium compression process require a larger work input than the corresponding quasi-equilibrium one?

Q: Why does a non-quasi-equilibrium expansion process deliver less

Why does a non-quasi-equilibrium expansion process deliver less work than the corresponding quasi-equilibrium one?

Q: Is a reversible expansion or compression process necessarily quasi-equilibrium?

Is a reversible expansion or compression process necessarily quasi-equilibrium? Is a quasi-equilibrium expansion or compression process necessarily reversible? Explain.

Q: What are the four processes that make up the Carnot cycle?

What are the four processes that make up the Carnot cycle?

Q: Can there be any heat transfer between two bodies that are at

Can there be any heat transfer between two bodies that are at the same temperature but at different pressures?

Q: The force generated by a spring is given by F = kx

The force generated by a spring is given by F = kx, where k is the spring constant and x is the deflection of the spring. The spring of Fig. P2–70 has a spring constant of 8 kN/cm. T...

Q: What are the two statements known as the Carnot principles?

What are the two statements known as the Carnot principles?

Q: Is it possible to develop (a) an actual and (

Is it possible to develop (a) an actual and (b) a reversible heat-engine cycle that is more efficient than a Carnot cycle operating between the same temperature limits? Explain.