Answer to Question #221062 in Physical Chemistry for Lester

Question

A three-point bending test is performed on a chocolate bar having a rectangular cross section of
thickness = 10 mm, width = 1.5 inch, and length = 15 cm. Compute for the flexural strength if the
load at fracture is 5.65 N.

Answer 1

α = (3FL/2bd²)

=((3(350)(250^-3))/2(90^-3)(38^-3)²

= 101MPa