# What is Einstein Temperature and how can i use it in this question?

1. Oct 26, 2004

### stunner5000pt

At waht temp will the heat capactiy at constant volume of a substance achieve one third of its classical value of 3R? Express in terms of Einstein temperature Te.

3R = 24.9 J/ mol K

R = 8.314 J / mol K = $$3R (\frac{Te}{T})^2 \frac{e^\frac{Te}{T}}{e^\frac{Te}{T} - 1}$$

But i dont know waht the Te for a subtance is though? Te = H nu / k

i dont know Nu though....

2. Oct 26, 2004

### anti_crank

This question has nothing to do with special or general relativity - it is a problem in statistical mechanics. Try either the classical physics forum, or homework help.