Quiz

If you do not know some of the terms below, just leave blanks. The answers are not graded!

1.

Calculate entropy for the states M=-3, M=-1, M=1 and M=3 for three spin Ising model.

2.

Calculate entropy for the states M²=1 and M²=9 for the three spin Ising model. Which state is more probable at high temperatures? Why?

3.

Which of the following quantities are extensive and which are intensive:

(a)

Chemical potential

(b)

Osmotic pressure

(c)

Free energy

(d)

Concentration

4.

Gibbs postulate means that:

(a)

All ensembles are equivalent

(b)

All points in the phase space are equivalent

(c)

All points in the microcanonical ensemble are equivalent

(d)

The energy is conserved

5.

There is a mistake in the sketch of phase space of harmonic oscillator in the lecture notes:

Find it.