An ordinary egg can be approximated as a 5-cmdiameter
sphere (Fig. 4-21). The egg initially at a
uniform temperature of 5oC and is dropped into
boiling water at 95oC. Taking the convection heat
transfer coefficient to be h = 1200 W/m2 · oC,
determine how long it will take for the center of the
egg to reach 70oC.oiling Eggs