Question

The entropy change involved in the isothermal reversible expansion of 2moles of an ideal gas from a volume of 10dm³ to a volume of 100dm³ at 27°C is 

(a) 38.3J mol^–1K^–1 

(b) 35.8J mol^–1K^–1 

(c) 32.3J mol^–1K^–1 

(d) 42.3J mol^–1K^–1

Answer 1

(a) : Entropy change for an isothermal process is