If Two Materials Are in Contact, with the First Material

question 25

Multiple Choice

If two materials are in contact, with the first material having twice the thermal conductivity of the second, what can be deduced about the temperature gradients in the two materials near the interface between them?

• A)They are the same.
• B)They depend on factors other than thermal conductivities.
• C)The temperature gradient of the second is half that of the first.
• D)The temperature gradient of the second is twice that of the first.