Two objects A and B of different size are both at a temperature of 500 K and are connected by a rod (A looks four times larger than b). What will be the nature of transmission of heat?
I believe there won't be a transmission of heat. Any thoughts. Here are the options
A. Gradual transmission from B to A
B. No transmission of heat will occur
C. Rapid transmission from A to B
D. Rapid transmission from B to A
I think you're right. The larger object holds more heat than the smaller object but if both are at the same temperature there is no reason for heat to be transferred.
The nature of heat transmission can be determined based on the principle of thermal conduction. In this case, we have two objects, A and B, at the same temperature connected by a rod.
Since object A is four times larger than object B, it means that object A has a larger surface area. This implies that object A will have more contact points with its surroundings through which heat can transfer.
According to the principle of thermal conduction, heat always flows from a region of higher temperature to a region of lower temperature.
Given that both objects are at the same temperature (500 K), and there is a temperature difference between the surroundings and objects A and B, heat will flow from the objects to the surroundings, not between the objects themselves.
Therefore, in this scenario, there will be no transmission of heat between the objects A and B.
Hence, the correct answer is:
B. No transmission of heat will occur.
To determine the nature of the heat transmission between objects A and B, we need to understand how heat is transferred and consider the temperature and relative sizes of the objects.
Heat is typically transferred through three different mechanisms: conduction, convection, and radiation. In this scenario, since objects A and B are connected by a rod, we can assume that heat is primarily transferred through conduction.
Conduction is the transfer of heat energy between objects that are in direct contact. It occurs when the temperature difference exists between two neighboring points. The amount of heat transferred through conduction depends on factors such as the thermal conductivity and surface area of the objects.
Now, let's analyze the options:
A. Gradual transmission from B to A: If object B has a higher temperature than object A, heat generally flows from the hotter object to the cooler object in a gradual manner through conduction. This option is possible, but we need to gather more information about the specific values of thermal conductivity and surface area of both objects.
B. No transmission of heat will occur: This option is not likely since heat transfer typically occurs between objects with temperature differences. However, we cannot conclude for certain without additional information.
C. Rapid transmission from A to B: This option is not supported by the initial information provided. Objects A and B are both at a temperature of 500 K, implying that there is no significant temperature difference driving the transfer of heat in either direction.
D. Rapid transmission from B to A: This option is not supported by the initial information provided. The temperature of objects A and B being equal suggests that there is no substantial temperature difference favoring the transfer of heat in either direction.
Based on the given information, the best option would be B. No transmission of heat will occur. However, it's necessary to keep in mind that this conclusion is based on the assumption that there are no significant temperature differences and without knowing the exact values of properties like thermal conductivity and surface area. Thus, further information is required to provide a more accurate answer.