Chemical Thermodynamics Question 136

Question: For which of the reaction ΔH=ΔE [MP PET 2004]

Options:

A) N2+3H22NH3

B) N2+O22NO

C) 2Na+Cl22NaCl

D) PCl5PCl3+Cl2

Show Answer

Answer:

Correct Answer: B

Solution:

N2(g)+O2(g)2NO(g) ; Δng=22=0

ΔH=ΔE+ΔngRT ; ΔH=ΔE+0 ; ΔH=ΔE



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