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  • Direction of work and heat interaction

    Khartz Di

    Member

    Updated: Oct 26, 2024
    Views: 1.1K
    A personal computer is to be examined from a thermodynamic perspective.
    Determine the direction of the work and heat interactions (in or out) when (a)
    keyboard (in operation), (b) monitor, (c) processing unit, and (d) all of the these
    are taken as system. Any suggestion plisss??
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Replies

  • Ramani Aswath

    Member • Aug 7, 2012

    Second law of thermodynamics operates in all situations.
    All work done ultimately degenerates into heat and warms up the device, be it key board, monitor, CPU or all together.
    The total heat output will be exactly equal to the total power input to the system from the grid and the mechanical energy of the fingers pressing the keys.
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  • zaveri

    Member • Aug 8, 2012

    Mostly the heat actually flows in one direction, that is through the walls of the monitor and CPU casings. and it generally flows from inside to outside, due to the working and heating of the internal circuitry.
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