NEET Exam > NEET Questions > The unit of thermal conductivity is.a)W m−1K...
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The unit of thermal conductivity is.
- a)W m−1K−1
- b)J mK−1
- c)J m−1K−1
- d)W mK−1
Correct answer is option 'A'. Can you explain this answer?
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The unit of thermal conductivity is.a)W m−1K−1b)J mK−1c)J m−1K−1d)W m...
where Q is the amount of heat flow, x is the thickness of the slab, A is the area of cross-section, and t is the time taken.
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The unit of thermal conductivity is.a)W m−1K−1b)J mK−1c)J m−1K−1d)W m...
Unit of Thermal Conductivity
Thermal conductivity is a measure of a material's ability to conduct heat. It is defined as the rate at which heat is transferred through a unit area of a material due to a temperature difference across that area. The unit of thermal conductivity is given by:
Option A: W m-1K-1
Explanation:
- W: Represents the unit of power, which is measured in watts. In this context, it refers to the rate at which heat is transferred.
- m-1: Represents the unit of length, which is measured in meters. It indicates that the heat transfer is considered per unit area.
- K-1: Represents the unit of temperature, which is measured in Kelvin. It signifies the temperature gradient across which heat is being transferred.
Therefore, the unit W m-1K-1 is used to express the thermal conductivity of a material. This unit highlights the relationship between power, area, and temperature difference in the context of heat transfer. It is essential for comparing the thermal conductivities of different materials and understanding how efficiently they can transfer heat.
Thermal conductivity is a measure of a material's ability to conduct heat. It is defined as the rate at which heat is transferred through a unit area of a material due to a temperature difference across that area. The unit of thermal conductivity is given by:
Option A: W m-1K-1
Explanation:
- W: Represents the unit of power, which is measured in watts. In this context, it refers to the rate at which heat is transferred.
- m-1: Represents the unit of length, which is measured in meters. It indicates that the heat transfer is considered per unit area.
- K-1: Represents the unit of temperature, which is measured in Kelvin. It signifies the temperature gradient across which heat is being transferred.
Therefore, the unit W m-1K-1 is used to express the thermal conductivity of a material. This unit highlights the relationship between power, area, and temperature difference in the context of heat transfer. It is essential for comparing the thermal conductivities of different materials and understanding how efficiently they can transfer heat.
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The unit of thermal conductivity is.a)W m−1K−1b)J mK−1c)J m−1K−1d)W mK−1Correct answer is option 'A'. Can you explain this answer?
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