Question

Which of the following reactions is \( \Delta H^{\circ}{ }_{r \times n} \) equal to the heat of formation of the product? Select one: A. \( \mathrm{C}_{2} \mathrm{H}_{2}(\mathrm{~g})+2 \mathrm{H}_{2}(\mathrm{~g}) \rightarrow \mathrm{C}_{2} \mathrm{H}_{6}(\mathrm{~g}) \) B. \( 6 \mathrm{C}(\mathrm{s})+6 \mathrm{H}(\mathrm{g}) \rightarrow \mathrm{C}_{6} \mathrm{H}_{6}(\mathrm{I}) \) C. \( \mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{NH}_{3}(\mathrm{~g}) \) D. \( 1 / 2 \mathrm{~N}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow \mathrm{NO}_{2}(\mathrm{~g}) \)

          Which of the following reactions is \( \Delta H^{\circ}{ }_{r \times n} \) equal to the heat of formation of the product?

Select one:
A. \( \mathrm{C}_{2} \mathrm{H}_{2}(\mathrm{~g})+2 \mathrm{H}_{2}(\mathrm{~g}) \rightarrow \mathrm{C}_{2} \mathrm{H}_{6}(\mathrm{~g}) \)
B. \( 6 \mathrm{C}(\mathrm{s})+6 \mathrm{H}(\mathrm{g}) \rightarrow \mathrm{C}_{6} \mathrm{H}_{6}(\mathrm{I}) \)
C. \( \mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{NH}_{3}(\mathrm{~g}) \)
D. \( 1 / 2 \mathrm{~N}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow \mathrm{NO}_{2}(\mathrm{~g}) \)

Which of the following reactions is Δ H^∘r × n equal to the heat of formation of the product?

Select one:
A. C2H2( g)+2 H2( g) →C2H6( g)
B. 6 C(s)+6 H(g) →C6H6(I)
C. N2( g)+3 H2( g) → 2 NH3( g)
D. 1 / 2 N2( g)+O2( g) →NO2( g)

Added by Kayla T.

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