Which of the following is NOT true about conduction as a means of heat transfer?
a. transfer of heat occurs through sucessive collisions of the atoms or molecules
b. the average kinetic energy of the atoms or molecules is greater in the hot object than in the cold object
c. the transfer process requires a material medium for it to take place
d. there is net translational motion of the atoms or molecules from their mean equilibrium positions
1
Expert's answer
2016-09-26T12:03:03-0400
As we know, conduction involves successive collisions of the atoms or molecules and the transfer of heat between two bodies in contact. Thus, a) is correct. The temperature is the average kinetic energy of the atoms or molecules in the object. Therefore, the average kinetic energy of the atoms or molecules is greater in the hot object than in the cold object. Thus, b) is correct. Since the conduction requires a material medium for it to take place, c) is correct too. Therefore, incorrect answer is d) there is net translational motion of the atoms or molecules from their mean equilibrium positions
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