Chemical Thermodynamics Question 302
Question: $ {C_{dia}} $ + $ O_2\to CO_2; $
$ \Delta H=-395.3,kJ/mole $
$ C_{gr}+O_2\to CO_2;,\Delta H=-393.4,kJ/mole $
$ C_{gr}\to {C_{dia}};,\Delta H= $ [BHU 2003]
Options:
A) - 3.8
B) - 1.9
C) + 3.8
D) + 1.9
Show Answer
Answer:
Correct Answer: D
Solution:
By (ii) - (i), $ C_{gr}\to C_{dia},,\Delta H=+1.9 $ .