A) \[180\text{ }kJ\]
B) \[186.4\text{ }kJ\]
C) \[166.0kJ\]
D) \[160\text{ }kJ\]
Correct Answer: C
Solution :
\[CaC{{O}_{3}}(g)CaO(s)+C{{O}_{2(g)}}\] \[(\Delta {{n}_{g}}=1-0=1)\] We know that, \[\Delta H=\Delta E+\Delta {{n}_{g}}RT\] \[176=\Delta E+1\times 8.31\times {{10}^{-3}}\times (273+927)\] \[\therefore \] \[\Delta E=176-8.31\times {{10}^{-3}}\times 1200\] \[=176-9.97\] \[=166.03kJ\]You need to login to perform this action.
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