0.58kg argon is compressed polytropic process with n = 1.2 from 125 kPa and 13 ºC in a piston–cylinder device, until its volume is reduced to V2 = c · V1, where the ratio c = 0.5. Ru = 8.314 kJ/(kmol∙K), MAr = 39.948 kg/kmol, cv = 0.3122 kJ/(kg∙K). Argon can be assumed as ideal gas and cv is assumed constant. Determine the final temperature and enthropy change in system

0.58kg argon is compressed polytropic process with n = 1.2 from 125 kPa and 13 ºC in a piston–cylinder device, until its volume is reduced to V2 = c · V1, where the ratio c = 0.5. Ru = 8.314 kJ/(kmol∙K), MAr = 39.948 kg/kmol, cv = 0.3122 kJ/(kg∙K). Argon can be assumed as ideal gas and cv is assumed constant. Determine the final temperature and enthropy change in system