Question

Which of the following reaction can be used to calculate the value of $\Delta H _{ f }^{0}$ of the product?

• A. $\frac{1}{2} H _{2}( g )+\frac{1}{2} Br _{2}( g ) \longrightarrow HBr ( g )$
• 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. $CO ( g )+\frac{1}{2} O _{2}( g ) \longrightarrow CO _{2}( g )$

Answer 1

Answer: (C)

All are in their standard state.