A sample of argon gas at `1atm` pressure and `27^(@)C` expands reversibly and adiabatically from `1.25 dm^(3)` to `2.50 dm^(3)`. Calculate the enthalpy change in this process. `C_(vm)` for orgon is `12.48J K^(-1) mol^(-1)`.

A sample of organ gas at 1atm pressure and 27^(@)C expands reversibly and adiabatically from 1.25 dm^(3) to 2.50 dm^(3) . Calculate the enthalpy change in this process. C_(vm) for orgon is 12.48J K^(-1) mol^(-1) .

A sample of argon gas at 1atm pressure and 27^@C expands reversibly and adiabatically from 1.25dm^3 to 2.5dm^3 . Calculate the enthalpy change in the process. Given that C_(v(m)) for Ar is 12.45JK^(-1)mol^(-1) and antilog (0.199)=1.58 .

Calculate the final temperature of a sample of CO_(2) gas (16g) that is expanded reversibly and adiabatically from 0.5 litre to 2.0 litre at 298 K . Also calculate the work done by the gas. If C_(v.m) for CO_(2) is 42 J K^(-1) mol^(-1) . Calculate the enthalpy change in the process. (take C_(p)//C_(v) for CO_(2) as 1.33 )

5 mol of an ideal gas expands reversibly from a volume of 8 dm^(3) at a temperature of 27^(@)C . Calculate the chngae in entropy.