Thermal conductivity

  1. What is Thermal conductivity? What are its units? What role does it play in heat transfer?
  2. What is temperature gradient? What are its units? What is the relationship of heat flow to a temperature gradient?
  3. What is a difference between heat flux and heat rate?
  4. What is Fourier’s law? Write down the equation
  5. What is the inherent difference between the application of conservation of energy over a time interval and at an instant of time?
  6. What is irradiation? What are its units?
  7. What is thermal energy storage? How does it differ from thermal energy generation?
  8. What is Newtown’s law of cooling? Write down the equation.
  9. What is the difference between natural convection and forced convection?
  10. What is impassivity?

Sample Solution