The energy transferred from the anterior chamber of the eye through the cornea varies considerably depending on whether a contact lens is worm. Treat the eye as a spherical system

and assume the system to be at steady state. The convection coefficient ho -6 W/m2-K is unchanged with and without the contact lens in place. The corner and the lens cover one-third of the spherical surface urea. Values of the parameters representing this situation are as follows. If To 21°C determine the rate of heat loss in W from the anterior chamber with the contact lens in place.