Question

Consider a classical ideal gas of N molecules in equilibrium at temperature T. Each molecule has two energy levels, -∈ and ∈. The mean energy of the gas is

• A. 0
• B. $N\isin\tan h(\frac{\isin}{k_BT})$
• C. $-N\isin\tan h(\frac{\isin}{k_BT})$
• D. $\frac{\isin}{2}$

Answer 1

Answer: (C)

$-N\isin\tan h(\frac{\isin}{k_BT})$

Answer 2

The correct answer is (C) : $-N\isin\tan h(\frac{\isin}{k_BT})$