Question

The table describes two methods of heat transfer

Methods of Heat Transfer
Method A Method B
Molecules of the medium move during heat transfer Transfer of heat is through waves like radio and light waves
Heat is transferred in gases and liquids by this method Heat is transferred through space by this method
Which statement is correct?
A) method A is convention and method B is radiation
B) method A is convention and method B is conduction
C) method A is radiation and method B is convention
D) method A is radiation and method B is conduction

Answer 1

Method A, which involves the movement of molecules in a medium, corresponds to convection, while Method B, which involves transfer through waves, corresponds to radiation. Therefore, the correct statement is A) Method A is convection and Method B is radiation.

Step-by-step explanation:

The student's question is about identifying the correct heat transfer methods corresponding to descriptions of Method A and Method B based on the characteristics given. Method A involves the movement of molecules of the medium during heat transfer and is characteristic of heat transfer in gases and liquids. This description fits the process known as convection, where heat is transferred through the macroscopic movement of a fluid, such as air or water. Method B involves the transfer of heat through waves like radio and light waves, which does not require the movement of the medium and can take place through space. This accurately describes radiation, whereby heat is transferred by electromagnetic waves.

Accordingly, the correct statement is: A) Method A is convection and Method B is radiation.