5) Initially, the pressure and temperature of steam inside a solid capsule is at 100-pound force per square inch absolute (psia)
, and 600 degrees Fahrenheit (°F), respectively. Because heat is gradually removed from this container, the pressure inside the capsule drops by the amount of 10-pound force per square inch absolute (psia). Answer the following questions, A. (10 points) The change of entropy per unit mass between the initial and final states B. (5 points) The amount of heat transfer per unit mass for the process C. (5 points) Sketch the T-s diagram for the process, showing the associated values of the thermodynamic properties for states and 2 on your sketch.
1 answer:
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Answer:
Given data:
Equation of the state
Where p = pressure of fluid, pα
T = Temperature of fluid, k
V = Specific volume of fluid
R = gas constant ,
a, b = Constants
Solution:
Specific heat difference,
According to cyclic reaction
Hence specific heat difference is
Equation of state,
Differentiating the equation of state with respect to temperature at constant volume,
Differentiating the equation of the state with respect to volume at constant temperature.
Substituting both eq (3) and eq (4) in eq (2)
We get,
Specific heat difference equation,