FYKOS Year 27 Series 6 Problem 3 — Sphere and shell · FYKOS 27 #27.6.3
Physics · thermodynamics
Problem
Consider a copper sphere and a copper hollow shell (so thin that one can neglect its thickness). Both have the same radius at room temperature. How shall the radius change if we begin warming them up? (Find the relation between the radius and the temperature and comment on it) With the copper shell think that it has small openings which ensure that the inside and outside pressure are both the same.