Methane at 2760 kPa and -6.31 ℃ is compressed in steady-state adiabatic compressor (85% efficient) to 11.5 MPa and 251 ℃ . Determine : (a) How many kW are required if the flow is to be 17.5 kmol/hr (b) The rate entropy generation in Joules per second and degrees K

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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.