Answer to Question #267253 in Molecular Physics | Thermodynamics for Nyarie

Question

A steel railroad track has length of 30m when the temperature is 0 degrees (a) when the temperature is 40 degrees, what is it’s length. (b) if the end of the rail are rigidly clamped at 0.0 degrees so that the expansion is prevented, what is the thermal stress set up if the rail is raised to 40 degrees

Answer 1

noting that the change in temperature is 40.0