Question

0.05 kg of carbon dioxide (molecular weight = 44) is compressed from 1 bar, 15°C, until
the pressure is 8.3 bar, and the volume is then 0.004 m3. Calculate the change of entropy.
Take cp for carbon dioxide as 1.0 kJ/kg K, and assume carbon dioxide to be a perfect gas (draw pc diagram )

Answer 1

0.05 kg of carbone dioxide (M=44) is compressed from I bar & 15C^° until the pressure is 8.3 bar and the volume is then 0.004m^3. Calculate the change of entropy

Answer 2

Answer

Answer 3

why is the sign negative