Question

A cubic metal box with sides of 17 cm contains air at a pressure of 1 atm and a temperature of 278 K. The box is sealed so that the volume is constant, and it is heated to a temperature of 378 K. Find the net force on each wall of the box.

Answer 1

F = 3.98 kN

Step-by-step explanation:

GIVEN DATA:

sides of box = 17 cm

pressure = 1 atm = 101325 N/m2

T2 = 378K

T1 = 278 K

final pressure can be calculate by using below relation

`(P_(1))/(P_(2))=(T_(1))/(T_(2))`

we know that

force = pressure * area

therefore force is

`F =((T_(1))/(T_(2))*P_(1))A`

`F =((378)/(278)*101325)(17*10^(-2))^(2)`

F = 3.98 kN