With increase in porosity, the thermal conductivity of a solid substance Options: A . &nbspIncreases B . &nbspDecreases C . &nbspRemains unchanged D . &nbspMay increase or decrease; depends on the solid

With increase in porosity, the thermal conductivity of a solid substance

Question

With increase in porosity, the thermal conductivity of a solid substance

Options:

A . Increases

B . Decreases

C . Remains unchanged

D . May increase or decrease; depends on the solid

Answer: Option B

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