2. Solved Papers
  3. AMU Medical

AMU Medical AMU Solved Paper-2003

  • question_answer
    If \[C(s)+{{O}_{2}}(g)\,\,\xrightarrow{{}}\,\,C{{O}_{2}}(g)\,;\]     \[\Delta H=R\] and\[CO(g)+\frac{1}{2}{{O}_{2}}(g)\,\,\,\xrightarrow{{}}\,\,C{{O}_{2}}(g);\]\[\Delta H=S\] then heat of formation of CO is

    A)  R + S                                    

    B)  R - S

    C)  \[R\times S\]                                   

    D)  S - R

    Correct Answer: B

    Solution :

                     \[C(g)+{{O}_{2}}(g)\xrightarrow{{}}C{{O}_{2}}(g)\]          \[\Delta H=R\] ... (i) \[CO(g)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow{{}}C{{O}_{2}}(g);\] \[\Delta H=S\] ... (ii) We aim at \[C(g)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow{{}}CO(g)\]     \[\Delta H=?\] Subtracting Eq. (ii) from Eq. (i), and          \[\Delta H=R-S\]


You need to login to perform this action.
You will be redirected in 3 sec spinner