Thursday, November 13, 2008

TE 303 - HW #7, P4 - Specific Entropy Change Using Tabluar Data - 16 pts

Using the appropriate table, determine the change in specific entropy in kJ/kg-K for:

a.) Water: P1 = 10 MPa, T1 = 400 degC and P2 = 10 MPa, T2 = 100 degC.
b.) R-134a: H1 = 211.44 kJ/kg, T1 = - 40 degC and P2 = 5 bar, x2 = 1.0.
c.) Air (IG): T1 = 7 degC, P1 = 2 bar and T2 = 327 degC, P2 = 1 bar.
d.) Hydrogen (H2, IG): T1 = 727 degC, P1 = 1 bar and T2 = 25 degC, P2 = 3 bar.

4 old comments

1 comment:

Anonymous said...

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HINTS:
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* Be sure to check out the comments from Dr. B's course!

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ANSWERS:
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b) 0.6526 kJ/kg-K
c) 0.9120 kJ/kg-K
d) -22.158 kJ/kg-K