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Heat energy flows
- a)from body at higher temperature to body at lower temperature
- b)from body at lower temperature to body at higher temperature
- c)when the temperature of two bodies is equal
- d)all the above statements are correct.
Correct answer is option 'A'. Can you explain this answer?
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Heat energy flowsa)from body at higher temperature to body at lower te...
Explanation:
Heat energy is a form of energy that flows from a body at a higher temperature to a body at a lower temperature. This flow of heat energy continues until both bodies reach a state of equilibrium or equal temperature. The direction of the flow of heat energy is always from a body at higher temperature to a body at lower temperature. This is known as the second law of thermodynamics. Heat energy can flow through three different modes: conduction, convection, and radiation.
Conduction:
Conduction is the transfer of heat energy between two objects in direct contact with each other. In this process, heat energy flows from a body at a higher temperature to a body at a lower temperature until both bodies reach the same temperature. For example, when we touch a hot object, heat energy flows from the hot object to our hand until both reach the same temperature.
Convection:
Convection is the transfer of heat energy through a fluid (liquid or gas). In this process, heat energy flows from a body at a higher temperature to the fluid and then to a body at a lower temperature. For example, when we boil water in a pot, heat energy is transferred from the stove to the water through convection.
Radiation:
Radiation is the transfer of heat energy in the form of electromagnetic waves. It does not require any medium and can occur through a vacuum. In this process, heat energy flows from a body at a higher temperature to a body at a lower temperature. For example, the heat energy from the sun reaches the earth through radiation.
Therefore, the correct option is 'A' which states that heat energy flows from a body at a higher temperature to a body at a lower temperature.
Heat energy is a form of energy that flows from a body at a higher temperature to a body at a lower temperature. This flow of heat energy continues until both bodies reach a state of equilibrium or equal temperature. The direction of the flow of heat energy is always from a body at higher temperature to a body at lower temperature. This is known as the second law of thermodynamics. Heat energy can flow through three different modes: conduction, convection, and radiation.
Conduction:
Conduction is the transfer of heat energy between two objects in direct contact with each other. In this process, heat energy flows from a body at a higher temperature to a body at a lower temperature until both bodies reach the same temperature. For example, when we touch a hot object, heat energy flows from the hot object to our hand until both reach the same temperature.
Convection:
Convection is the transfer of heat energy through a fluid (liquid or gas). In this process, heat energy flows from a body at a higher temperature to the fluid and then to a body at a lower temperature. For example, when we boil water in a pot, heat energy is transferred from the stove to the water through convection.
Radiation:
Radiation is the transfer of heat energy in the form of electromagnetic waves. It does not require any medium and can occur through a vacuum. In this process, heat energy flows from a body at a higher temperature to a body at a lower temperature. For example, the heat energy from the sun reaches the earth through radiation.
Therefore, the correct option is 'A' which states that heat energy flows from a body at a higher temperature to a body at a lower temperature.
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Heat energy flowsa)from body at higher temperature to body at lower te...
Heat flows from high temperature to
low temperature
low temperature
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Heat energy flowsa)from body at higher temperature to body at lower temperatureb)from body at lower temperature to body at higher temperaturec)when the temperature of two bodies is equald)all the above statements are correct.Correct answer is option 'A'. Can you explain this answer?
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