Five moles of gas A (volume V1) and 3 moles of gas B (volume V2) were kept in separate

Q. Five moles of gas A (volume V1) and 3 moles of gas B (volume V2) were kept in separate containers. These two gases are completely transferred to a new container of volume V. Assuming isothermal condition, and that the work done is only mechanical, the entropy change of the system is_________________Joules K^-1. (R = 8.3 J K^-1 mole^-1)

Ans: 42-45