Question: An insulated piston - cylinder device initially contains 0 . 3 m 3 of carbon dioxide at 2 0 0 kPa and 2 7
An insulated pistoncylinder device initially contains m
of carbon dioxide at kPa and deg C An electric switch is turned on and a V source supplies current to a resistance heater inside the cylinder for a period of min. The pressure is held constant during the process, while the volume is doubled. The gas constant and molar mass of CO are R kPamkgK
and M kgkmol Table A The specific heat of CO at the average temperature of Tavg K
is cp avg kJkgdeg C
Table AbDetermine the current that passes through the resistance heater A
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