A) \[-14.0\]
B) \[-12.0\]
C) \[-6.0\]
D) \[-10.0\]
Correct Answer: A
Solution :
Sol. \[\frac{1}{2}{{N}_{2}}+{{O}_{2}}\xrightarrow{{}}N{{O}_{2}};\] \[\Delta H=8kcal\] \[{{N}_{2}}+2{{O}_{2}}\xrightarrow{{}}{{N}_{2}}{{O}_{4}};\] \[\Delta H=2kcal\] Multiplying Eq. (i) by 2 and substracting Eq. (ii) from it. \[2N{{O}_{2}}\xrightarrow{{}}{{N}_{2}}{{O}_{4}};\] \[\Delta H=-14.0kcal\]You need to login to perform this action.
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