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4 February, 16:58

Which of the following statements regarding thermal conductivity is WRONG? Select one: O a. It is a transport property O b. It depends on the state of a matter O c. It depends on the temperature of a matter O d. The order of conductivity for different states is gas > liquid > solid

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  1. 4 February, 17:01
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    the wrong statement is

    d) the order of conductivity for different states is gas > liquid > solid

    Explanation:

    the correct order is solid > liquid > gas

    the thermal conductivity is a property of materials that it values the ability to transmit heat through them. In general, for metals and solid of continuos bodies the conductivity is high.

    k = q / ΔT

    ∴ q: heat flux

    ∴ ΔT; temperature gradient

    When a material undergoes changes of states, the thermal conductivity can change. for example, the conductivity of frozen water (a 0°C) is higer than that of liquid water ... from literature.
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