Need help with this problem A box containing a fixed amount of volume and temperature held…

Need help with this problem

A box containing a fixed amount of volume and temperature held constant at 300K is separated into two parts, of volume A and B. In volume A there are 3 moles of oxygen and in volume B there is 1 mole of chlorine. Suppose that the volume in A is 1.00m5 and 2.00m 3. a. What is the entropy in each volume.?