Steam at 228 and with a specific entropy of 6.1351 kj/kg-k undergoes a poly tropic process with n=1.81 until the pressure becomes 7.98 MPa (a) what is the final temperature of the stem? (B) What is the work and the process

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A:

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A: Given Data: The temperature of R-134a is, T=25°C. The specific volume of R-134a is, v=0.01 m3/kg.

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Q: R-134a is initially at 600 kPa and 25°C. It undergoes a process during which the entropy is kept…

A:

Q: A bucket contains 20 kg of water at 120 •C, and 8 kg of water at 240 •C and the two fluids are…

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A: mass of steam m=2.6kgpressure P=500kPatemperature T=400oCcooled in piston until 56% condenses

Q: Calculate the entropy change of 1 kg ice that is heated from -25 ° C to 350 K, consider that the Cp…

A: T1 = -25 C = 248 K T2 = 0 C = 273 K  T3 = 350 K L = 6.02 kJ/mol Cp)w = 75.3 J/mol K Cp)i = 37.7…

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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.