Duration: 2:11

1 views

0

(a) \( \mathrm{C} \) (graphite) \( +\mathrm{O}_{2}(g) \longrightarrow \mathrm{CO}_{2}(g) \)
\( \Delta, \mathrm{H}=x \mathrm{~kJ} \mathrm{~mol}^{-1} \).
(b) C graphite) \( +\frac{1}{2} \mathrm{O}_{2}(g) \longrightarrow \mathrm{CO}(g) \);
\( \Delta \mathrm{H}=y \mathrm{kJJ} \mathrm{mol}^{-1} \).
(c) \( \mathrm{CO}(g)+\frac{1}{2} \mathrm{O}_{2}(\mathrm{~g}) \longrightarrow \mathrm{CO}_{2}(\mathrm{~g}) ; \Delta_{r} \mathrm{H}=z \mathrm{~kJ} \mathrm{~mol}^{-1} \).
Which of the following relationship is correct?
(A) \( z=x+y \)
(B) \( x=y-z \)
(C) \( y=2 z-x \)
(D) \( x=y+z \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live