Question

The unit of thermal conductivity is :
(1) J m K⁻¹
(2) J m⁻¹ K⁻¹
(3) W m K⁻¹
(4) W m⁻¹ K⁻¹

Answer 1

Answer:

giving below

Explanation:

the right answer is (4) i.e.watt per kelvin.metre

Answer 2

The unit of thermal conductivity is $\bold{W.m^{-1}.K^{-1}}$

Step by step explanation:

Thermal conductivity;

The transfer of heat energy through a material.

Thermal conductivity is depending on the following factors

• Moisture content in the material
• Structure of the material
• Pressure and temperature conditions which are operated by the material.
• Density of the material.

The thermal conductivity can be calculated by the following formula.

                 $\bold{H=\frac{kA}{L}(T_{2}-T_{1})}$

Units of thermal conductivity -  $\bold{W.m^{-1}.K^{-1}}$

Hence, correct answer - 4