Gitofa Shah PHYSICS   -   Thermodynamics

A gas is compressed adiabatically from pressure P1 to P2. What is the change in temperature of the gas?

In an adiabatic compression, the temperature of the gas increases according to the relation T2 = T1 * (P2 / P1)^(γ - 1), where γ is the adiabatic index.
A system undergoes a reversible isothermal expansion from volume V1 to V2. What is the change in internal energy of the system? A heat engine operates between two reservoirs at temperatures T1 and T2, with T1 > T2. What is the maximum efficiency of the engine? What is the name of the process by which a system transitions from a metastable state to a stable state with a decrease in free energy? What is the name of the thermodynamic potential that describes a system at constant pressure and temperature? A gas is compressed adiabatically from pressure P1 to P2. What is the change in temperature of the gas?