Calculate the change in molar entropy when a sample of argon is compressed from 2.0 dm 3 to 500 cm 3 and simultaneously heated from 300 K to 400 K. Take CV, m = R. A monatomic perfect gas at a...

Calculate the change in molar entropy when a sample of argon is compressed from 2.0 dm 3 to 500 cm 3 and simultaneously heated from 300 K to 400 K. Take CV, m = R. A monatomic perfect gas at a temperature Ti is expanded isothermally to twice its initial volume. To what temperature should it be cooled to restore its entropy to its initial value? Take CV, m = R.