The heat of reaction between carbon (graphite) and the corresponding stoichiometric amounts of hydrogen gas to form C 2 H 2 (g), C 2 H 4 (g), and C 2 H 6 (g) are 226 7, 52 3 and 84 7 kJ mol 1 , respectively Relate these values to the enthalpy diagram shown in the margin Indicate on the diagram the ...

The enthalpy diagram typically represents the energy changes during a chemical reaction Heres how you can interpret the given heat of reaction values ...

The heat of reaction between carbon (graphite) and the corresponding stoichiometric amounts of hydrogen gas to form

Question:

The heat of reaction between carbon (graphite) and the corresponding stoichiometric amounts of hydrogen gas to form C₂H₂(g), C₂H₄(g), and C₂H₆(g) are 226.7, 52.3 and -84.7 kJ mol^-1, respectively. Relate these values to the enthalpy diagram shown in the margin. Indicate on the diagram the standard enthalpy of reaction for C₂H₂(g) + 2 H₂(g) → C₂H₆(g).