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What is the unit of thermal conductivity?

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Question: What is the unit of thermal conductivity?

Options:

  1. W/m·K
  2. J/kg·K
  3. K/W
  4. J/m·s

Correct Answer: W/m·K

Solution: 

The unit of thermal conductivity is Watts per meter per Kelvin (W/m·K).

What is the unit of thermal conductivity?

Practice Questions

Q1
What is the unit of thermal conductivity?
  1. W/m·K
  2. J/kg·K
  3. K/W
  4. J/m·s

Questions & Step-by-Step Solutions

What is the unit of thermal conductivity?
  • Step 1: Understand that thermal conductivity measures how well a material conducts heat.
  • Step 2: Know that the unit of measurement for power is Watts (W).
  • Step 3: Recognize that thermal conductivity also depends on the distance heat travels, which is measured in meters (m).
  • Step 4: Realize that temperature difference is measured in Kelvin (K).
  • Step 5: Combine these units to express thermal conductivity as Watts per meter per Kelvin (W/m·K).
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