Total entropy change does not depend on the mass of water?

[yellowputty]

Hello,

Can someone please briefly explain to me why, if I have a system (water) T1, and introduce it to a heat bath of temperature T2 (where T2>T1), and the are left to reach equilibrium, that the total entropy change does not depend on the mass of water?

Thank you.

 

[Mapes]

I don't agree that the total entropy change is independent of the mass of water.