Maurice Tutor

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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 05 Jan 2018 My Price 8.00

paddle wheel

11.93    A closed, rigid, insulated vessel having a volume of

0.142 m3 contains oxygen (O2) initially at 100 bar, 78C. The oxygen is stirred by a paddle wheel until the pressure becomes 150 bar. Determine the

(a)   final temperature, in 8C.

(b)   work, in kJ.

(c)   amount of exergy destroyed in the process, in kJ. Let T0 5 78C.

11.94   A preliminary design calls for a 1 kmol mixture of CO2 and C2H6 (ethane) to occupy a volume of 0.15 m3 at a temperature of 400 K. The mole fraction of CO2 is 0.3.

Owing to safety requirements, the pressure should not exceed 180 bar. Check the pressure using

(a)   the ideal gas equation of state.

(b)   Kay’s rule together with the generalized compressibility chart.

(c)   the additive pressure rule together with the generalized compressibility chart.

Compare and discuss these results.

Answers

Maurice Tutor
(5)
Status NEW Posted 05 Jan 2018 12:01 PM My Price 8.00

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