From a state defined 300 psia, 100 cu. ft and 245 deg. F, Helium undergoes an Isentropic process to 0.5 psig. Find: a. V2 and T2 b. Change in Enthalpy and Internal Energy c. Heat and Change in Entropy.

Q: = missing properties

A: Solution given below.

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A: a) Here, P=500kPa T=1000C U=418.80KJ/kg V=0.001043m3/kg The values will  be superheated condition.

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A: According to the guidelines we are supposed to answer 1st question only.

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A: Data given - P= 1 atm = 101.325 kPa Quality x= 10% = 0.1

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A: T1= 30+273= 303K, m=3kgP1=250KPa, P2=100KPan=1.45T2T1= 1002501.45-11.45=228.014KTotal Work, W=…

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Q: Find a) Сp, Cv

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A: The step by step solution is given below.

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A: please put the question

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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.