Which of the following do(es) not represent `DeltaH` formation of the product.
`(I) 1/2 H_(2)(g)+(aq) rarr H^(+) (aq)" "(II) 2/3 O_(3) (g) rarr O_(2)(g)`
`(III) NH_(4)^(+) (g)+Cl^(-) (g) rarr NH_(4)Cl(s)" "(IV) P_(4) ("black") +5O_(2) (g) rarr P_(4)O_(10) (s)`
(V) Reaction representing `DeltaH_("combustion")` of `C` (graphite).

Options

A. `I, IV, V`
B. `II, IV`
C. `II, III, IV`
D. `II, III, IV, V`

Answer

C

Explanation

`(I) DeltaH_(f)` of `H^(+)`
`(V) DeltaH_(f)` of `CO_(2)(g)`
`{:( :.,II rarr O_(2)(g) rarr O_(2) (g),DeltaH_(f)O_(2),),(,III rarr 1/2 N_(2)+2H_(2)+1/2 Cl_(2),DeltaH_(f)NH_(4)Cl,),(,IV rarr P_(4)("white")+…..,DeltaH_(f)P_(4)O_(10),,"option (C)"):}`