The enthalpy change change for which reaction represents the standard enthalpy of formation for hydrogen cyanide, HCN?A. `H(g)+C_("graphite")+N(g)to HCN(g)`B. `(1)/(2)H_(2)(g)+C_("graphite")(1)/(2)N_(2)(g) to HCN(g)`C. `HCN(g)to (1)/(2)H_(2)(g)+C_("graphite")+(1)/(2)N_(2)(g)`D. `H_(2)(g)+2C_("graphite")+N_(2)(g)to2HCn(g)`

The enthalpy change change for which reaction represents the standard

1.	The enthalpy change change for which reaction represents the standard enthalpy of formation for hydrogen cyanide, HCN?A. `H(g)+C_("graphite")+N(g)to HCN(g)`B. `(1)/(2)H_(2)(g)+C_("graphite")(1)/(2)N_(2)(g) to HCN(g)`C. `HCN(g)to (1)/(2)H_(2)(g)+C_("graphite")+(1)/(2)N_(2)(g)`D. `H_(2)(g)+2C_("graphite")+N_(2)(g)to2HCn(g)`
Answer» Correct Answer - b

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