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NEET Sample Paper NEET Sample Test Paper-16

  • question_answer
    The heat of formation of \[C{{O}_{2}}\]is -95 kcal. The amount of carbon which on burning will evolve 1000 kcal is

    A)  15.63 g

    B)  12.95 g

    C)  126.3 g

    D)  160.5 g

    Correct Answer: C

    Solution :

    \[C+{{O}_{2}}\to C{{O}_{2}}+95\,\text{kcal}\] 95 kcal heat is evolved from 1 mole of carbon. \[\frac{12}{95}\times 1000=126.3\,g\] [1 mole of C = 12 g] Hence, the correct option is (c).


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