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Unformatted text preview: ature in each tank and
(b) the entropy generated during this process.
Answers: (a) 133.55°C, 113.0°C; (b) 0.912 kJ/K
600 kJ A
x = 0.8 Answer: 2.467 kg TNT 7–153 Using the arguments in Prob. 7–152, determine the total explosion energy of a 0.2-L canned drink that explodes at a
pressure of 1 MPa. To how many kg of TNT is this explosion
7–154 Demonstrate the validity of the Clausius inequality
using a reversible and an irreversible heat engine operating
between the same two thermal energy reservoirs at constant
temperatures of TL and TH. B
250°C FIGURE P7–156
7–157 Heat is transferred steadily to boiling water in the pan
through its flat bottom at a rate of 800 W. If the temperatures of
the inner and outer surfaces of the bottom of the tank are 104°C
and 105°C, respectively, determine the rate of entropy generation within bottom of the pan, in W/K. High-temperature reservoir at TH
QH QH Wnet, rev REV.
HE QL 800 W Wnet, irrev IRREV.
HE FIGURE P7–157...
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This document was uploaded on 11/28/2012.
- Spring '09