How to Calculate Energy and Entropy for a Two-State Boson System?

[amirghaderi]

Entropy for 2State Boson System [URGENT!]

Homework Statement

Find the Energy and Entropy of a two state Bosonic system with energy states 0 & E.
How is the Condensation of this system?

Homework Equations

The Attempt at a Solution

i don't know how to start...

 

[Maxim Zh]

Start with the Gibbs distribution.