What is the percentage of error involved in treating carbon dioxide at 7 mpa and 380 k as an ideal gas?

Percentage of error is 67.2%

Explanation:

from table A-1 of thermodynamics " gas constant and critical point properties" obtain CO_2 properties

from table

critical temperature

critical pressure

Gas constant R = 0.188 kJ/kg -K

From ideal gas equation we have

PV = RT

solving of v we have

v = 0.01020 m^3/kg

Reduced Pressure

reduced temperature

obtained compressibility factor (z) from chart between reduced temperature and reduced pressure.

from

so we have

Pv = ZRT

v = 0.00615 m^3/kg

percentage of error is

%

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