Which of the following processes can be idealized as being i

Which of the following processes can be idealized as being isentropic Flow through an operating jet engine Expansion through a turbine The compression stage of a diesel engine Flow through a strong shock wave

Solution

Expansion through a turbine can be idealized as being isentropic,Because in a turbine the entrophy of the mass flow does not change that is entrophy remains constant in its process.