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gfd43tg
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Homework Statement
Ten kmol per hour of air is throttled from upstream conditions of 25°C
and 10 bar to a downstream pressure of 1.2 bar. Assume air to be an ideal gas with Cp= (7/2)R.
(a)What is the downstream temperature?
(b)What is the entropy change of the air in J mol-1K-1?
(c)What is the rate of entropy generation in W K-1?
(d)If the surroundings are at 20°C, what is the lost work?
Homework Equations
The Attempt at a Solution
For my entropy balance, I am not sure how to get dS_surr/dt