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  1. #1
    hhtt21 is offline Key Member
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    establishes necessary and sufficient conditions for the occurrence of vapor-liquid

    "Thermodynamics establishes necessary and sufficient conditions for the occurrence of vapor-liquid, liquid-liquid, and solid-fluid equilibria".

    Would you please explain the part "establishes necessary and sufficient conditions for the occurance of ..." I especially do not understand establishment of conditions and conditions for occurance of something here they are is equlibria states.


    https://books.google.com.tr/books?id...ria%3B&f=false

    Thank you.

  2. #2
    SoothingDave is offline VIP Member
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    Re: establishes necessary and sufficient conditions for the occurrence of vapor-liqui

    To contrast, something could be necessary, but not sufficient to cause something. For example, a compressed fuel-air mixture is necessary for combustion in your gasoline engine. But it is not sufficient. You also need a spark.

  3. #3
    hhtt21 is offline Key Member
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    Re: establishes necessary and sufficient conditions for the occurrence of vapor-liqui

    Thank you for the answers but would you explain the part "conditions for occurance of ..."

    This phrase is somehow puzzling for me.

    Thank you.

  4. #4
    hhtt21 is offline Key Member
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    Re: establishes necessary and sufficient conditions for the occurrence of vapor-liqui

    Quote Originally Posted by RobertJ View Post
    What are the "conditions for the occurrence of" a fire? Something that is flammable and a match ---- or another source of ignition.
    Conditions for the occurance=conditions required for somehthing to happen or to form or to create?

    Thank you.

  5. #5
    Rover_KE is offline Moderator
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    Re: establishes necessary and sufficient conditions for the occurrence of vapor-liqui

    hhtt21, you keep misspelling 'occurrence',

  6. #6
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    probus is offline Moderator
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    Re: establishes necessary and sufficient conditions for the occurrence of vapor-liqui

    Necessary conditions for the occurrence of something means that the something cannot happen unless these conditions are fulfilled.

    Sufficient conditions ... means that the something will always occur whenever you these conditions are fulfilled.

  7. #7
    GoesStation is offline Moderator
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    Re: establishes necessary and sufficient conditions for the occurrence of vapor-liqui

    Quote Originally Posted by Rover_KE View Post
    hhtt21, you keep misspelling 'occurrence',
    I do the same thing.
    I am not a teacher.

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