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Irina18 [472]
3 years ago
8

A closed system undergoes a process in which work is done on the system and the heat transfer Q occurs only at temperature Tb. F

or each case, determine whether the entropy change of the system is positive, negative, zero, or indeterminate.(a) internally reversible process, Q > 0.(b) internally reversible process, Q = 0.(c) internally reversible process, Q < 0.d) internal irreversibilities present, Q > 0.(e) internal irreversibilities present, Q = 0.(f) internal irreversibilities present, Q < 0.
Engineering
1 answer:
yuradex [85]3 years ago
6 0

Answer: where was that from though

Explanation:

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2 years ago
Why will screws never replace nails​
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3 0
3 years ago
If the bending moment (M) is 4,176 ft-lb and the beam is an 1 beam, calculate the bending stress (psi) developed at a point with
SpyIntel [72]

Answer:

Bending stress at point 3.96 is \sigma_b = 1.37 psi

Explanation:

Given data:

Bending Moment M is 4.176 ft-lb = 50.12 in- lb

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y = 3.96 in

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putting all value to get bending stress

\sigma_b = \frac{50.112}{144} \times 3.96  

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Bending stress at point 3.96 is \sigma_b = 1.37 psi

3 0
3 years ago
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