Can someone please identify where these Heat conduction transport phenomena questions came from? Please provide the book name and edition as well as question numbers and page numbers if they're from a book. Otherwise please provide a link to the appropriate resource or resources for the questions.

Please provide sources for all three questions.

6. To prevent heat loss from a fluid-filled vessel, it is decided to attach an electrical heater to the outside of the wall. The passage of current through the heater material yields a constant rate of energy generation, H. The inside bulk temperature and heat transfer coefficient are T; and his respectively. The outside values are T, and ho, where T,