Oxygen gas weighing `128 g` is expanded form `1atm` to `0.25 atm` at `30^(@)C`. Calculate entropy change, assuming the gas to be ideal.

Oxygen gas weighing 64 g is expanded from 1 atm to 0.25 atm at 30^(@)C calculate entropy change, assuming the gas to be ideal.

Helium weighing 16 g is expanded from 1atm to one-tenth of its original pressure at 30^(@)C . Calculate the change in entropy assuming it to be an ideal gas.

Helium weighing 16 g is expanded from 1atm to one-tenth of its original pressure at 30^(@)C . Calculate the change in entropy assuming it to be an ideal gas.

If one mole of monoatomic ideal gas expanded from 2 atm to 0.5 atm at 27°C, then the entropy change will be

Four grams of helium is expanded from 1 atm to one-tenth of its origiinal pressure at 30^(@)C . Change in entropy (assuming ideal gas behaviour) is :

Four grams of helium gas is expanded from 1 atm to one tenth of its original pressure at 30^@ change in entropy assuming ideal gas behaviour is: