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    Chemistry-
    General
    Easy

    Question

    Ahypothetical reaction , A→2B, proceed throughfollowingsequenceofsteps- A→C;ΔH=q1
    C→D;ΔH=q2
    fraction numerator 1 over denominator 2 end fraction D rightwards arrow B semicolon capital delta H equals q subscript 3 end subscript Theheatofreactionis:

    1. q1–q2+2q3    
    2. q1+q2–2q3    
    3. q1+q2+2q3    
    4. q1+2q2–2q3    

    The correct answer is: q1+q2+2q3

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