(a) One mole of an ideal gas expands isothermally and reversibly at `25^(@)C`
Channel: Doubtnut
Date: 26/01/2020

(a) One mole of an ideal gas expands isothermally and reversibly at `25^(@)C` from a volume of `10` litres to a volume of `20` litres. (i) What is the change in entropy of the gas? (ii) How much work is done by the gas? (iii) What is `q` (surroundings) ? (iv) What is the change in the entropy of the surroundings? (v) What is the change in the entropy of the system plus the surroundings ? (b) Also answer the questions opening a stopcock and allowing the gas to rush into an avacuated bulb of `10 L` volume.