Oxygen enters an insulated 12-cm-diameter pipe with a velocity of 50 m/s. At the pipe entrance, the oxygen is at 300 kPa and 20°C; and at the exit, it is at 150 kPa and 10°C. Calculate the rate at which entropy is generated in the pipe. (Assume: a. Ideal gas behavior, b. Steady-flow in the pipe, c. Constant sp. heat)

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Q: Hi, can you please help me with this entropy problem?

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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.