Which of the following reaction can be used to calculate the value of Δ H f 0 of the product?

Question

Which of the following reaction can be used to calculate the value of Δ H f 0 of the product? (A) (1/2) H 2( g )+(1/2) Br 2( g ) longrightarrow HBr ( g ) (B) C text diamond + O 2( g ) longrightarrow CO 2( g ) (C) P 4( white )+3 O 2( g ) longrightarrow P 4 O 6( s ) (D) CO ( g )+(1/2) O 2( g ) longrightarrow CO 2( g )

Tardigrade Admin · Accepted Answer

All are in their standard state.

Q. Which of the following reaction can be used to calculate the value of $Δ H_{f}^{0}$ of the product?

$\frac{1}{2} H_{2} (g) + \frac{1}{2} B r_{2} (g) ⟶ H B r (g)$

$C_{diamond} + O_{2} (g) ⟶ C O_{2} (g)$

$P_{4} ($ white $) + 3 O_{2} (g) ⟶ P_{4} O_{6} (s)$

$CO (g) + \frac{1}{2} O_{2} (g) ⟶ C O_{2} (g)$

All are in their standard state.

Q. Which of the following reaction can be used to calculate the value of ΔHf0​ of the product?

21​H2​(g)+21​Br2​(g)⟶HBr(g)

Cdiamond ​+O2​(g)⟶CO2​(g)

P4​( white )+3O2​(g)⟶P4​O6​(s)

CO(g)+21​O2​(g)⟶CO2​(g)

All are in their standard state.

Q. Which of the following reaction can be used to calculate the value of $Δ H_{f}^{0}$ of the product?

$\frac{1}{2} H_{2} (g) + \frac{1}{2} B r_{2} (g) ⟶ H B r (g)$

$C_{diamond} + O_{2} (g) ⟶ C O_{2} (g)$

$P_{4} ($ white $) + 3 O_{2} (g) ⟶ P_{4} O_{6} (s)$

$CO (g) + \frac{1}{2} O_{2} (g) ⟶ C O_{2} (g)$