FYKOS Year 32 Series 4 Problem 1 — cube with the air · FYKOS 32 #32.4.1

Physics · mechanics · thermodynamics

Problem

Consider a hollow cube with edge of

a = 20 \mathrm{cm}

filled with air. Air as well as the enviroment has a temperature of

t_0 = 20 \mathrm{\C }

. We will cool down the air inside the cube to the temperature of

t_1 = 5 \mathrm{\C }

. Find the force acting on each of the cube's side. The cube has got a fixed volume. The pressure outside of the cube equals

p_0 = 101{,}3 \mathrm{kPa}