A) \[{{N}_{2}}+3{{H}_{2}}\]⇌\[2N{{H}_{3}}\]
B) \[{{N}_{2}}+{{O}_{2}}\to 2NO\]
C) \[2Na+C{{l}_{2}}\to 2NaCl\]
D) \[PC{{l}_{5}}\to PC{{l}_{3}}+C{{l}_{2}}\]
Correct Answer: B
Solution :
\[{{N}_{2}}(g)+{{O}_{2}}(g)\to 2NO(g)\]; \[\Delta {{n}_{g}}=2-2=0\] \[\Delta H=\Delta E+\Delta {{n}_{g}}RT\]; \[\Delta H=\Delta E+0\]; \[\Delta H=\Delta E\]
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