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JEE Main & Advanced Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank First law of thermodynamics and Hess law

  • question_answer
    Enthalpy for the reaction \[C+{{O}_{2}}\to C{{O}_{2}}\] is [DPMT 1987, 91]

    A)                 Positive               

    B)                 Negative

    C)                 Zero      

    D)                 None

    Correct Answer: B

    Solution :

              It is a combustion reaction, \[\Delta H=-\,\,ve\].


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