Ask Question
13 July, 16:18

In which of the following is radiation the only type of heat transfer?

A. Liquid

B. Gas

C. Vacuum

D. Solid

+5
Answers (2)
  1. 13 July, 18:19
    0
    vacuum = apex
  2. 13 July, 19:07
    0
    C. Vacuum

    Explanation:

    There are three methods of transfer of heat:

    1) Conduction: conduction is the transfer of heat by direct contact between the molecules of two objects (or two substances). The particles of the hotter object vibrate faster than the particles of the colder object, so energy is transferred by collisions of the molecules from the hotter object to the colder object.

    2) Convection: convection is the transfer of heat by mass movement of molecules. This occurs in fluids (liquids or gases), when an external source of heat is applied to the fluid. As a result, the part of the fluid closer to the source gets warmer, so it becomes less dense and rises, while the colder part sinks and replaces the hotter part, forming a convective current. The process continues until the heat source is removed.

    3) Radiation: radiation is the transfer of heat carried by electromagnetic waves. Electromagnetic waves can travel in any medium and in a vacuum, so they are the only type of heat transfer that can occur in a vacuum (while conduction and convection cannot occur in a vacuum).
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “In which of the following is radiation the only type of heat transfer? A. Liquid B. Gas C. Vacuum D. Solid ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers