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FINDING ORDER OF REACTION WITH CONCENTRATION-TIME GRAPHS watch

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    Can someone help me

    how do i find the order of reaction from a concentration-time graph???
    Coz how long do you draw the tanget???
    Please help i always get confused with this.
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    Lol it doesn't matter how long the tangent ... it will give you the same value wether long or short!
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    Although if you're actually drawing the tangent, the longer it is, the more accurate the value of the gradient.
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    Just a note, for first order reactions, the half life will be constant. Thats all you need in terms of finding orders from graphs with Edexcel anyway
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    (Original post by kpg)
    Just a note, for first order reactions, the half life will be constant. Thats all you need in terms of finding orders from graphs with Edexcel anyway
    wow, i didn't know that!
    thanks~
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    if the graf is a str8 line then the order is zero with respect 2 that reactant
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    yeh thats true it shud be really obvious as there will be a constant decrease...
 
 
 
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