Could someone kindly help me with parts (b)(i) and (b)(ii)?

The answer for part (b)(i) is 138,080J

The answer for part (b)(ii) is -58,488J

Thank you!

1kg of a perfect gas is compressed from 1.1 bar, 27C according to the relation pv1.3= constant, until the pressure is 6.6 bar. Calculate the heat flow to or from the cylinder walls: (i) When the gas is Ethane (molar mass 30g/mol ) which has [9 marks] Cp=2.10kJ/kgK (ii) When the gas is Argon (molar mass 40g/mol ) which has Cp=0.520kJ/kgK [8 marks]