Steam enters an adiabatic turbine at 5 MPa and 500ºC with a 50 m/s velocity and exits from the turbine at 100 kPa and 75 m/s velocity. The power output of the turbine is 5 MW and the isentropic efficiency is 80%. Determine, a) The mass flow rate of the steam passed through the turbine. b) The temperature at the turbine exit. c) The rate of entropy generation during this process

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.