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What does these symbols represent? (Thermodynamics). …

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What does these symbols represent? (Thermodynamics). Please define also. 1). ∆H° 2). ∆fH° 3). ∆rH

    • Posted by Tanisha Chawla 3 years, 11 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Yogita Ingle 3 years, 11 months ago

    ∆rH for a reaction is defined as the difference between ∆fH value of products and ∆fH value of reactants.

    ∆H is negative for exothermic reactions which evolve heat during the reaction and∆H is positive for endothermic reactions which absorb heat from the surroundings.

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