True or false: an isentropic process is always a reversible, adiabatic process.Question 3Select one:TrueFalse

Which of the following is true for an adiabatic processa. The entropy of the system decreases during adiabatic compression.b. An isobaric adiabatic process is necessarily irreversible.c. The value of the ratio  is necessarily 5/3 for an ideal gas.d. The adiabat follows the isotherm for a reversible process

If a closed piston-cylinder system is cycled fast enough, the process approaches reversibility.Question 10Select one:a.TRUEb.FALSE

All isothermal processes are necessarily internally reversibleQuestion 5Select one:a.TRUEb.FALSE

The ideal vapour-compression refrigeration cycle is not a reversible cycle becauseQuestion 1Select one or more:a.heat input is not isothermal across an infinitesimal temperature differenceb.the ideal compression process is non-isentropicc.heat rejection is not isothermal across an infinitesimal temperature differenced.expansion process through the throttling valve is irreversiblee.phase changes that occurring during heat input and output cannot be reversed

For an expansion or compression process to be reversible it must be ________Question 2Select one:a.Isothermalb.Isobaricc.Adiabaticd.Isometric