Chemical Thermodynamics Question 136
Question: For which of the reaction $ \Delta H=\Delta E $ [MP PET 2004]
Options:
A) $ N_2+3H_2 $ ⇌ $ 2NH_3 $
B) $ N_2+O_2\to 2NO $
C) $ 2Na+Cl_2\to 2NaCl $
D) $ PCl_5\to PCl_3+Cl_2 $
Show Answer
Answer:
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 $
