An ordinary egg can be approximated as a 5.5-cm-diameter sphere. The egg is initially at a uniform tempera­ture of 8°C and is dropped into boiling water at 97°C. Taking the properties of the egg to be...

An ordinary egg can be approximated as a 5.5-cm-diameter sphere. The egg is initially at a uniform tempera­ture of 8°C and is dropped into boiling water at 97°C. Taking the properties of the egg to be ρ= 1020 kg/m3 and cp= 3.32 kJ/kg-°C, determine (a) how long it will take to reach 70°C